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Jonah Hill is looking good!

The Academy Award nominee appeared noticeably thinner on the New York set of "Collateral Beauty" on Feb. 29.

The "21 Jump Street" star wore black slacks and shoes with a black sweater over a white collared shirt during the fashionable outing. He completed his look with a camel overcoat and stylish shades and sported a close-cropped 'do and a full beard.

It's unclear whether Jonah has turned over a new stylish leaf or was simply dressed in character for the film, which stars Will Smith as a New York advertising executive who experiences a personal tragedy that prompts him to retreat from his life. The A-list cast of the upcoming drama also includes Kate Winslet, Edward Norton, Keira Knightley, Helen Mirren, Michael Peña and Naomie Harris.

Jonah's size has yo-yoed several times in recent years.

The heavyset actor reportedly lost around 40 pounds in 2011 for his role as an undercover cop in "21 Jump Street."

But by summer 2014, he'd begun to put the weight back on.

There was definitely more of Jonah to love in January 2015 when he was photographed wearing a colorful jacket on a New York film set.

In April, he looked even bigger on the Los Angeles set of his upcoming Todd Phillips-directed comedy "Arms and the Dudes," which co-stars Miles Teller. Jonah sported a light blue button-down shirt with khaki slacks and loafers in the shocking photos. (It's still unclear whether or not his role in the film necessitated the weight gain.)

But then the funny-man appeared slimmer at the 2016 Golden Globe Awards on Jan. 10. He wore a black tuxedo with a bowtie during the awards ceremony, during which he presented an award with Channing Tatum.

And Jonah looked slimmer still in all black at the Los Angeles premiere of "Hail, Caesar!" on Feb. 1.

The star addressed his weight during an interview with Vulture in 2011.

"Being healthier came along with maturity," he said. "And it's hard, because a lot of times people want you to be the guy you were when they met you. And I love doing funny movies, but I want to mature, literally, in how I treat myself. I'm not living in a frat house with a bong plastered to the table. ... But all this stuff [points to his body] is just part of maturing in body and in mind. I just want to be a good man and to make my family proud. And, you know, I want to live a long time."

Keep it up, Jonah!