VERY CLOSE. Christina Aguilera and Adam Levine belt out a song in a performance on The Voice. Image from The Voice Facebook page

MANILA, Philippines - "Just leave her alone."

So said Maroon 5 frontman Adam Levine on fellow The Voice judge Christina Aguilera in his recent guesting at The Ellen DeGeneres Show, when Ellen asked him about defending Christina against comments about her weight.

"It's a very basic thing. She should be left alone, no one should bother her or haggle her on her weight," he continued.

The two famously squabbled in the reality talent show's earlier seasons, but today Adam says they are "very close."

"It was what it was... but we're fine now," he said after Ellen commented on everyone "getting along a little better this season."

TODAY'S FAB FOUR. The Voice season 3 judges Cee Lo Green, Christina Aguilera, Adam Levine and Blake Shelton. Image from The Voice Facebook page

Adam says he's having fun on The Voice. "I have a blast, everybody's great," he told Ellen.

He also disclosed that while season 3 is airing, they have begun taping season 4, where Usher and Shakira replace Cee Lo Green and Christina in the judges' chairs.

Only Adam and country singer Blake Shelton are also judges in season 4.

Watch his interview with Ellen here:

Adam was in Manila last September for the band's 3rd time in the Philippines as part of their Overexposed tour.

He also signed on as an endorser of Filipino retail brand Bench.

For Adam, Filipinos are "the best fans." - Rappler.com