Katie Holmes Wearing Beats by Dr. Dre Headphones on Set in Queens

Katie Holmes Is Rockin' Them Beats

Katie Holmes may not have been your favorite iPhone-obsessed celeb in 2009, but she is taking her tunes quite seriously these days. Katie showed off her musical prowess on So You Think You Can Dance last season (and during her stint on Broadway), and she has since upgraded from her tiny iPod earbuds to a pair of Beats by Dr. Dre headphones (which I adore) to get the full sonic experience.

When Katie wasn't rocking out between takes, she kept her Beats around her neck during rehearsals (which seems to be a growing trend among music fans), and she's not the only celeb who's been rockin' them Beats — Dancing With the Stars' Louie Vito kept his close at hand last season, while Black Eyed Peas frontman will.i.am is a huge fan of all things Monster. But now I must know — what's on her iPod playlist?

Source: WireImage