Underwood and Crawford Split?

Us Weekly is reporting that American Idol winner Carrie Underwood is single once again, saying that she and boyfriend Chace Crawford have broken things off.

The 25-year-old "Before He Cheats" singer and Crawford had been dating since last July. It wasn't until October when the couple finally decided to make their relationship public.

The magazine claims that the relationship seemed like it was going strong and that Crawford's family really liked her. Underwood even spent some of the holidays with the 22-year-old Gossip Girl star's family. There is no information on why the two may have split.

Before Crawford, Underwood was linked to Jessica Simpson's current beau, Dallas Cowboy's quarterback Tony Romo. Rumors had recently been circulating that Crawford and *NSYNC member JC Chasez were dating. The rumors were so bad that Chasez had to set the record straight, telling 104.7 KIIS-FM, "For the record, we're both straight. We're not dating."