We should've known this incredible news was coming when Katy Perry and Charli XCX were hamming it up at the VMAs, but it still comes as a wonderful surprise!

Katy Perry announced Twitter that her opener for the Prismatic tour's upcoming European dates will be none other than Charli XCX.

Yup, we told you she's an artist to watch.

Here they are chilling at the VMAs with Riff Raff and Sam Smith—Charli caption the Insta "Get ready..... ;)" and now we know why.

Katy is well-known for taking pop stars on the rise on tour with her for that opening slot, last year she brought both Tegan & Sara and country breakout star Kacey Musgraves out. Needless to say—none of these artists could fill an arena on their own, at least not yet—but touring with Katy gives them exposure to a whole new audience.

Let's hope this chance gives the "Boom Clap" singer the chance to prove that she's just as big as on her own as the hooks on Iggy Azalea's "Fancy" and Icona Pop's "I Love It." If her sophomore album Sucker out October TK is any indication, she's more than ready to be a full blown pop star.

Here's the dates that Charli will join Katy:

February 16 - Barcelona: Palau Saint Jordi

February 17 - Montpellier: Park Suite Arena

February 20 - Lyon: Halle Tony Garnier

February 21 - Milan: Mediolanum Forum

February 23 - Prague: O2 Arena

February 24 - Krakow: Krakow Arena

February 26 - Vienna: Stadthalle

February 27 - Bratislava: Slovnaft Arena

March 1 - Zurich: Hallenstadion

March 2 - Munich: Olympiahalle

March 4 - Antwerp: Sportpaleis

March 5 - Cologne: Lanxess Arena

March 7 - Herning: Jyske Bank Boxen

March 9 - Amsterdam: Ziggo Dome

March 12 - Hamburg: O2 World

March 13 - Berlin: O2 World

March 15 - Riga: Arena

March 18 - Helsinki: Hartwall Arena

March 20 - Oslo: Telenor Arena

March 22 - Stockholm: Ericsson Globe

But remember how Katy and Kacey started collaborating after they went on tour together? Maybe the same thing will happen with Charli and Katy... fingers crossed!