Liam Hemsworth: Birthday Party Pics!

Thor stud Chris Hemsworth comes out to celebrate the 21st birthday of his little brother, Liam Hemsworth, held at Cleo inside L.A.’s Redbury Hotel on Friday (January 14).

Liam also celebrated his birthday bash with some of his pals — actor/director Justin Baldoni and The Hard Times of RJ Berger actress Amber Lancaster.

The party then continued at The Colony, where Liam was surrounded by a gaggle of girls!

Liam‘s actual birthday was on Thursday (January 13). Happy Birthday, Liam!!!

Thor, co-starring Natalie Portman, opens on May 6!

FYI: Chris is wearing a Burberry jacket.