American pop star Josh Groban and actress January Jones have split after dating for three years. The YOU RAISE ME UP hitmaker, 25, and AMERICAN WEDDING star Jones, 28, are "taking a break" from each other, according to the singer's spokeswoman Liz Rosenberg. Jones, who previously dated Ashton Kutcher, has recently been spotted with her SWEDISH AUTO co-star Lukas Haas at a Las Vegas, Nevada, nightclub.