In honor of his 48th birthday, let's take a closer look at why we love him. Hint: It's his face.
His "I LIKE PRANCING" look.
Source: wtf-rdj.tumblr.com
RDJ's "I can do sports" face.
Source: wtf-rdj.tumblr.com
His "I am the light at the end of the tunnel" face.
Source: wtf-rdj.tumblr.com
His "Pee-Wee's Playhouse" look.
Source: wtf-rdj.tumblr.com