Ring the alarm! Ed Sheeran is feeling "Dirrty."

While Christina Aguilera was doing her best Britney Spears impression, Ed was doing his best XTina and I have to say it's pretty impressive.

Turning Christina's hit song from her 2002 album, Stripped, into a midtempo jam, Ed brought out his guitar, added a little soul and reminded us once again why he's the king of cover songs on BBC Radio 1's Live Lounge.

Yes, this may seem like a bit of a radom cover, but Ed fully committed to the song singing each and every suggestive lyric. But the best part, hands down, had to be when Ed rapped Redman's verse from the song. Only thing he was missing? Christina's chaps and bikini top from the video. Now that would have been interesting.