Chelsea Kane: Wango Tango with Stephen Colletti!

Chelsea Kane leathers it up in blank pants as she arrives at KIIS FM’s 2011 Wango Tango Concert at Staples Center in Los Angeles on Saturday night (May 14).

The 21-year-old actress was joined by boyfriend Stephen Colletti, who was just in New York, promoting the season finale of One Tree Hill.

The finale hits airwaves just before an all-new Hellcats on Tuesday, May 17th @ 8PM ET/PT on the CW.

Chelsea is also pictured arriving at practice with her George Gina & Lucy J. Jumper bag, on Sunday afternoon (May 15) in Los Angeles.

15+ pics inside of Chelsea and Stephen…

FYI: Chelsea wore a black vintage lace tank with Swarovski beading by Rachael Cassar.