Justin Bieber Caps Big Weekend With Super Bowl Ad

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The teen pop sensation has popped up on "The Daily Show," "Late Show With David Letterman" and "Saturday Night Live" over the past few days.

Justin Bieber has had quite a week.

The teen pop sensation kicked off a whirlwind of TV appearances Thursday night when he popped up on Comedy Central's The Daily Show With Jon Stewart in a Freaky Friday move that saw Bieber and Stewart lampoon each other's personalities.

On Friday, the singer delivered the Top 10 List on CBS' Late Show With David Letterman -- a countdown of "Reasons It's Fun to Be Beiber."

A day later, Bieber surprised NBC's Saturday Night Live viewers, first appearing opposite host Dana Carvey on a "Church Lady" skit -- in which the title character found she had caught a case of "Bieber fever" -- and then appearing in an ad parodying this weekend's release The Roommate.

Finally, on Sunday, the singer debuted his new Best Buy commercial opposite Ozzy Osbourne during Super Bowl XLV on Fox.