Celebrity rumors are in the air.

Demi Lovato and Wilmer Valderrama were caught kissing Tuesday in Los Angeles after attending a Halloween party together Monday night, TMZ reported.

The 19-year-old singer is 12 years younger than 31-year old Valderrama.

The rumored couple briefly dated in 2010 following Lovato's highly publicized split from Joe Jonas. Later that year, Lovato was treated for eating disorders and a bipolar disorder, People Magazine reported.

Lovato's rep refused to comment to People Magazine and Valderrama's manager did not return their phone calls.

However, Lovato fans seem unafraid of showering their support (or hesitation) towards the rumored lovebirds. Fans tweeted endlessly Tuesday about whether the duo's smooching is just a rumor, whether the age difference should matter and (most importantly to some) whether Wilmer is a reasonable name.

LovaticsGoHard Ask Taylor ♥ †
So happy for Demi and Wilmer but if he ever breaks her heart, 4 million Lovatics will break his face (:

Trendeh paulie fenty
I think everyone needs to lay off Demi and Wilmer, if Demi's happy then you should be too, she deserves this.. she's had a tough year.

xLoveMileyJonas † Natalie
Demi and wilmer? Groooooss. 12 years.

I support Demi and Wilmer. They're hot.

MyObsessionDemi Lovatic.
Seeing Demi and Wilmer together for the first time was a shock but now I'm happy for @ddlovato ! I wish you all the best. <3

The_DemiLovato_ Demi Lovato's Fan
Oh No!! RT @BreakiingNews : Demi and Wilmer are dating... Forget about the 11yr age difference... HIS NAME IS WILMER!...

Despite the enormous flux of commenters on twitter, Lovato has not commented on her Twitter nor has Valderrama on his.