Lily Allen busted out with Britney Spears’ ‘Womanizer’ at her show on Thursday in L.A.

Then, wouldn’t you know, about 3/4 of the way through the song Blowhan comes out onstage! WTH! She just sort of wanders out there and says something in Lily’s ear. As if Lily should stop performing and talk to her.

This is Lindsay making it all about her.

They hug, then Lily continues performing. But Lindsay, like she’s all geeked out or something, stands around as though she’s waiting for Lily to lay the attention on her – which she eventually does.

“You you you are..a womanizer!” Lily sings at Lindsay who replies, “Who me?”

Lindsay then dances for about 5 seconds and slinks offstage.

Mission accomplished.