The action on the Superbowl XLV field had Steelers and Packers fans glued to their TV sets Sunday (Feb. 6) night. But for many, it was the ads that popped up between the tackles and touchdowns that made the game memorable.

Beliebers across the country waited until the third quarter to the see the premiere of pop prince Justin Bieber's Best Buy commercial with metal monarch Ozzy Osbourne. In the clip, a raccoon-eyed and comically out-of-the loop Ozzy attempts to endorse the latest and greatest smartphone, but gets confused because he can't keep up with the fast pace of technology. Enter an in-the-know Bieber to save the day with a wink and a catchphrase: "It's Bieber 6G fever!"

The Osbournes remain in the dark. "What's a 6G?" wife Sharon asks -- to which Ozzy quips, "What's a Bieber?" (refrencing a question that he legitimately asked an US magazine reporter back in December 2010).

Video: Justin Bieber and Ozzy Osbourne's Best Buy ad

Eminem wound up in two ads during the big game. In the First, Shady got claymated for a hilarious Lipton Brisk ad that poked fun at the rapper's foul mouth and bad temper. Later in the game, Em left comedy behind and gave serious props to the Motor City in a Chrysler ad that showed him cruising around his native Detroit.

Video: Eminem's Lipton Brisk ad

Video: Eminem's Chrysler ad

Biebs and Em weren't the only musicians who got some airtime during the big game. Easy-listening sax god Kenny G. got a clever cameo in an Audi ad, Faith Hill helped a romantically challenged studio hand express his emotions in her Teleflora spot, and the Black Eyed Peas became animated mimi-mes for their pre-Halftime Chatter.com commercial

Video: Faith Hill's Teleflora Ad

Video: The Black Eyed Peas' Chatter.com ad

See all of the Super Bowl XLV commercials at Adweek.com