After Simon Cowell's girlfriend of six years, Terri Seymour, broke up with him over the phone, The American Idol judge's rep Max Clifford surmised the reason was that Cowell would never settle down. "In the past Terri has said that she wants kids, but that just isn't Simon," said Clifford.

See photos of Simon's ex, Terri Seymour.

But Cowell isn't the only Hollywood catch who refuses to be reeled in. While most A-Listers follow the vast majority of humanity into marriage (many multiple times), a select few resist that walk down the aisle like an eight-year-old fights a grandmother's kiss on the cheek.

We have compiled our "Top Ten Serial Singles": A-Listers who prove, again and again, that marriage isn't for everyone.

See photos of Hollywood's Top Ten Serial Singles