Ashton Kutcher gives financial advice at Teen Choice Awards

UNIVERSAL CITY, CA - AUGUST 07: Actor Ashton Kutcher accepts the Choice Movie Actor: Romantic Comedy award onstage during the 2011 Teen Choice Awards held at the Gibson Amphitheatre on August 7, 2011 in Universal City, California. (Photo by Kevin Winter/Getty Images)
Kevin Winter
Ashton Kutcher onstage during the 2011 Teen Choice Awards on Aug. 7, 2011, in Universal City, Calif.

(CBS) Ashton Kutcher showed off his singing pipes and offered a few words of financial wisdom while accepting his surfboard trophy at Sunday's Teen Choice Awards.

"Here's the best piece of advice I got when I was a teenager," said the new "Two and a Half Men" actor, who was named choice actor in a romantic comedy for his role in "No Strings Attached."

Pictures: 2011 Teen Choice Awards
Pictures: Teen Choice Awards highlights

"Don't ever charge anything on a credit card if you don't already have the money in the bank to pay for it."

The 33-year-old, who was dressed casual wearing a plaid shirt, straw hat and sunglasses, ended his speech singing a lengthy rendition of Katy Perry's "Teenage Dream," with the crowd eventually joining him.

The fan-voted ceremony was hosted by "The Big Bang Theory" actress Kaley Cuoco.

"Harry Potter," "The Twilight Saga: Eclipse," "The Vampire Diaries," Selena Gomez, Robert Pattinson, "Glee," Justin Bieber and Taylor Swift were among the night's big winners.