Pete Townshend defends himself

FORT LAUDERDALE, Fla. (AP) - The Who gave an energetic, acoustic preview of Sunday's Super Bowl halftime show, but things turned serious when Pete Townshend defended himself against critics who say he should not be performing.

The guitarist was arrested in 2003 in Britain as part of a child pornography sting but later cleared. He accessed a Web site containing child pornography but said it was for research for his own campaign against child porn.

That doesn't satisfy some children's advocates.

Still, Townshend says: "I kind of feel like we're all on the same side, I guess that's all I can really say."