Carly Rae Jepsen: Capital FM Summertime Ball 2012!

Carly Rae Jepsen lights up the room as she arrives at Capital FM’s Summertime Ball 2012 held at Wembley Stadium on Saturday night (June 9) in London.

The 26-year-old Canadian cutie was actually Justin Bieber‘s surprise guest at the fete.

“Big thanks to @justinbieber for EVERYTHING! #CapitolSTB playing Wembley Stadium was unreal!” Carly Rae tweeted.

Carly Rae shared with Capital FM backstage, “I don’t know, we were all stoked about it [song 'Call Me Maybe'] but we didn’t expect any of this. This is kind of beyond.”

10+ pics inside…