Credit: Splash News Online

Sorry, ladies -- One Direction's Louis Tomlinson is off the market!

The boy band singer, 20, stepped out with his model girlfriend Eleanor Calder in L.A. Wednesday. After ordering coffees at Starbucks, the couple went shopping at The Grove.

Calder, who studies politics and sociology at Manchester University, has appeared in ads for Hollister. "She is a couple of years older than Louis, but the lads in the band think she's the female version of Louis," an insider told The Sun in 2011. "She is gobby, loud and confident but pretty laid-back at the same time."

Tomlinson and his British bandmates -- Niall Horan, 18, Zayn Malik, 19, Liam Payne, 18, Harry Styles, 18 -- are riding high on the success of their smash CD Up All Night, which debuted at No. 1 on the Billboard charts last week.

The musicians, who placed third on Simon Cowell's British X Factor in 2010, will perform "What Makes You Beautiful" at the Nickelodeon Kids' Choice Awards Saturday. One Direction recently announced plans to star in their own television show for the network.

Tell Us: Do Louis Tomlinson and Eleanor Calder make a good couple?