Ed Sheeran: Hot 99.5's Jingle Ball in Washington, D.C.

Ed Sheeran hits up Hot 99.5′s Jingle Ball 2012 held at The Patriot Center on Tuesday night (December 11) in Washington, D.C.

The 21-year-old musician was spotted arriving at Reagan Airport earlier in the day.

“Every single love song I’ve done is about her, but this is one that she doesn’t know it’s about her — now she knows!” Ed recently shared backstage at Z100′s Jingle Ball about his ex-girlfriend.

Ed added on “Little Things” which he wrote and One Direction included on their new album, “I gave that to the boys about two months ago, and within a month, it was No. 1 in the U.K. So I didn’t expect it to happen, but it’s cool!”

FYI: Ed is playing his Martin guitar.

20+ pics inside…