EXID's surprise sleeper hit Up & Down, fuelled by member Hani's sexy fancam, continues its ascent up the charts this week by climbing two spots to No. 5.

It's the group's highest-charting single to date by far, easily beating the No. 36 peak of their 2012 debut, Whoz That Girl.

The No. 1 song of the week belongs to ballad king Sung Si Kyung's Christmas single Don't Forget, followed by A Pink who stay put at No. 2 with LUV.

Super Junior's Kyuhyun is still going strong with his solo single At Gwanghwamun, which is back up two spots to No. 3, while rapper Master Wu's Come Here featuring Dok2 and Bobby arrives at No. 8.

Meanwhile, trending girl group AOA continue to show staying power as their latest hit Like a Cat remains at No. 10 for a second consecutive week.

INFINITE's latest subunit INFINITE F debuts at No. 23 with My Heart Is Beating, followed by boy band BtoB's Christmas single You Can Cry at No. 24.

Last but not least is new female soloist Shannon, who arrives at a solid No. 32 with her first single Daybreak Rain. This is quite good for a rookie female pop artist, especially one from a smaller agency like Shannon.

Check out this week's top K-pop hits below!

No. 1. Sung Si Kyung - Don't Forget

No. 5. EXID - Up & Down

No. 23. INFINITE F - My Heart Is Beating

No. 24. BtoB - You Can Cry

No. 32. Shannon - Daybreak Rain

It looked like A Pink were going to land their first No. 1 single this week with "LUV," but the adorable girl group were blocked from the top by legendary ballad singer Park Hyo Shin's new single, "Happy Together."

"LUV" settles for second place, but A Pink can be compensated in the fact that all five tracks from their new mini-album managed to debut in the top fifty.

A few spots down, EXID's "Up And Down" jumps a huge 27 places to No. 7. As Popdust previously reported, the sudden popularity of "Up And Down" is all down to a fan-recorded video of member Hani performing the song's sexy choreography that went viral in Korea a fortnight ago.

AOA's "Like a Cat" spends a third week in the top ten at No. 10, while rapper LOCO debuts at No. 19 with "You Don't Know."

GOT7's "Stop Stop It" --despite its disappointing debut last week-- manages to spend a second week in the top forty at No. 38, while MAMAMOO's "Piano Man" rockets up 46 places to No. 41.

MBLAQ's gorgeous seasonal ballad "Spring, Summer, Fall, And... Winter" arrives at No. 60, followed by Sunny Hill's "Here I Am" at No. 68.

Ex-KARA member Nicole continues to struggle with her solo single "MAMA," which slips down to No. 80, but it's nothing compared to T-ara's Korean remake of the Chinese novelty hit "Little Apple," which debuts at No. 91 -- the lowest position of the group's career. However, considering that it's just a one-off special collaboration single that isn't being fully promoted in Korea, you can't really hold its chart position up to T-ara's official single releases.

Check out this week's new K-pop hits below.

No. 2. A Pink - LUV

No. 7. EXID - Up And Down

No. 41. MAMAMOO - Piano Man

No. 60. MBLAQ - Spring, Summer, Fall, And... Winter

No. 91. T-ara - Little Apple

SM Entertainment's f(x) have narrowly missed out on topping the Gaon chart with their new single "Red Light," which is forced to settle for second place this week. The edgy electro-pop track was pipped at the post by A Cube's seasonal summer single, "Break Up To Make Up," performed by balladeer Huh Gak and A Pink's Eunji.

While f(x) missed out on No. 1, they did manage to land two songs in the top ten, with the bhangra-flavoured "Milk" debuting at No. 10.

Last week's chart topper, Younha's "Umbrella," slips to No. 4, while god's new single, "The Story of Our Lives," debuts at No. 3.

AOA's "Short Hair" drops four spots to No. 11, while B2ST's surprisingly successful "Good Luck" is down to No. 14, and Davichi's "Don't Move" stays put at No. 20.

Rookie girl group MAMAMOO slip to No. 25 with "Mr. Ambiguous" after peaking at No. 19 last week, while Hyomin's "Nice Body" plunges to No. 31 after debuting at No. 13 last week.

Hyosung's "Good-night Kiss" falls out of the top forty for the first time since its release, dropping to No. 43 (although it's still in the top forty of Melon's real-time digital chart), while Tiny-G's "Ice Baby" falls to No. 60.

Look out for some more interesting moves on next week's chart, which will include new entries from Girl's Day, B1A4, Kim Hyun Joong, and Henry.

No. 1. Huh Gak & Eunji - Break Up To Make Up

No. 2. f(x) - Red Light

No. 10. f(x) - Milk

No. 16. f(x) - All Night

After topping Korea's official Gaon chart last week with the ballad "No More," boy band B2ST have done it again with their latest single "Good Luck." The song enters at No. 1, while "No More" takes a tumble down to No. 10. It's the first time that B2ST's ever yielded more than one No. 1 from an album, with "I Knew It" from 2012's Midnight Sun serving as their only other chart-topper to date.

Coming in second place is Maroon 5's "Maps," which is quite surprising given Korea's insular music industry.

Taeyang's "Eyes, Nose, Lips" slips to No. 4, while Bumkey's new digital single "Home" arrives at No. 5. Meanwhile, Davichi's "Pillow" debuts at No. 11, but could still rise higher next week like their previous single "Again" did.

Rising girl group AOA land their second top twenty entry with "Short Hair," which debuts at No. 14. The song is currently performing well on Korea's main real-time digital charts, so expect it to rise next week -- it could even become the group's first top ten hit.

Further down, we've got some older singles showing a lot of staying power: Hyosung's "Good-Night Kiss" is at No. 21 despite promotions for the song officially ending last weekend, while A Pink's three-month-old "Mr. Chu" is still in the top forty at No. 35.

Check out this week's key K-pop hits below!

No. 1. B2ST - Good Luck

No. 4. Bumkey - Home

No. 11. Davichi - Pillow

No. 14. AOA - Short Hair

No. 53. MAMAMOO - Mr. Ambiguous

The Korean entertainment industry has been at a standstill ever since the tragic Sewol ferry disaster, and it's reflected in the official K-pop charts. There's been little movement on the charts for weeks, with virtually all of the previously-scheduled new releases having been pushed back to unspecified dates in the future.

Akdong Musician's "200%" takes back the No. 1 spot after 15&'s "Can't Hide It" dethroned the teen duo last week. IU and HIGH4's "Not Spring, Love, or Cherry Blossoms" moves one place to No. 2, followed by 15& in third place.

A Pink's "Mr. Chu" is back in the top five, climbing two spots to No. 4, while Soyou and Junggigo's "Some" hops three places to No. 12, and Orange Caramel's catchy "Catallena" moves to No. 13.

4minute's "Whatcha Doin' Today" is No. 30, Crayon Pop's "UH-EE!" is No. 31... That's about it. Sorry, but there's just not much to report this week!

Anyway, take a listen to this week's No. 1 below.

After debuting at No. 1 last week with "200%," YG Entertainment's AKMU slips one spot to make way for 15&'s "Can't Hide It," which takes the top spot this week.

Both AKMU and 15& are teen pop duos that got their start on the reality TV singing competition K-pop Star, so it's nice to see thing work out for the pairs as they trade places at the top of the charts.

Rookie boy band HIGH4 and their duet with IU, "Not Spring, Love, or Cherry Blossoms," falls one spot to No. 3 this week, while Sihwan Park's "I Just Loved You" debuts at No. 4.

Trending girl group A Pink are showing a lot of longevity with their current hit "Mr. Chu," which is back up one spot to No. 6 this week, while Orange Caramel's "Catallena" bounces back five spots to No. 14.

Meanwhile, Crayon Pop's "UH-EE!" is at No. 25, while 4minute's former chart-topper "Whatcha Doin' Today?" is at No. 29.

Check out this week's No. 1 K-pop single below.