Before she kicks things off in Atlanta Tuesday night, Katy Perry has announced five additional dates and one new opening act for the North American leg of her California Dreams tour. British singer Jessie J will perform alongside Perry beginning in November, at major venues like New York's Madison Square Garden, L.A.'s Staples Center and Mandalay Bay in Las Vegas. Jessie joins fellow uniquely coiffed ladies like Robyn and Janelle Monae, who will open for Perry throughout the summer along with Oh Land and Marina & The Diamond. (Are those whipped cream bras one-size fits all?) Tickets for the additional November dates go on sale Friday June 17.

While this could give Jessie the push she needs to really hit it big stateside, November still feels awfully far away. The lengthy wait will give her plenty of time to start thinking of some ridiculous tour demands, as long as she keep's Katy's zero tolerance for carnations in mind.

Reacquaint yourself with Jessie J, below. And for those who won't be seeing the tour live this summer, here's how things have been going thus far: