Joe Jonas Parties at the Club Sans Girlfriend Ashley Greene (PHOTOS)

Ashley & Joe Party Down!
Check out pics from Ashley's Vegas b-day.
While the cat’s away, the mice (or rather, mouse) will play!

Just because his girlfriend Ashley Greene is away filming in Vancouver doesn’t mean that Joe Jonas should sit home alone. The handsome Jonas Brothers frontman was all smiles as he left the Trousdale nightclub in West Hollywood with a male friend. You better not be dancing with any girls, Joe!

The 21-year-old star was probably at the club to get some new music ideas – Joe has said that his upcoming solo album will have a lot of techno and dance music influences. Maybe we’ll all be dancing to Joe’s tunes at the club pretty soon!

Joe isn’t just out clubbing while Ashley is away: The Disney star was also spotted shopping with a friend on Tuesday afternoon.

Check out more photos and head on over to Joe’s Celebuzz page to see the latest news and photos!