By Rachel Abramowitz, Times Staff Writer

Grammy winner Taylor Swift is making her film debut in "Valentine's Day," a star-studded romantic comedy in which she plays a slightly vacuous but sweet high schooler who's in love with Taylor Lautner. Meanwhile, Carrie Underwood recently announced plans to make her acting debut in "Soul Surfer," based on the true-life story of a surfer who loses her arm in a shark attack; she'll play a church youth counselor. Both Swift and Underwood join a long line of songbirds who've made their Hollywood debuts, with varying degrees of success.