Morgan Freeman's helium interview

Morgan Freeman delighted guests when he sucked on a helium balloon during a talk show appearance.

The legendary actor occupied the guest seat on last night's The Tonight Show Starring Jimmy Fallon, looking relaxed in a pair of jeans, shirt and jacket.

Talking about the TV show he's executive producer and host of, Through the Wormhole, host Jimmy asked if Morgan would be up for recreating his voice while on helium.

Morgan took some convincing and still didn't seem sure when Jimmy presented him with a red balloon. Smiling, 77-year-old Morgan listened as Jimmy told him he wanted to conduct an interview on helium.

"Come on Morgan. Don't quit on me now Morgan!" Jimmy mock shouted.

After taking the balloon in his hands, Morgan sat good naturedly and listened to Jimmy.

"Do you still sail on ship? Remember you told me you have a sail boat?" Jimmy asked in between giggles.

"No I don't sail it anymore," the Seven actor blinked back, balloon in hand.

"Because I never got the invite... because I've always wanted to go on your ship because you know what I would call you? Captain Morgan," Jimmy laughed before sucking in helium.

Morgan quickly followed suit, shaking his head and stifling a laugh.

"I really shouldn't be doing this," he said in a high pitched voice, much to the audience's delight.

"It's helium, it's helium Morgan," Jimmy roared back.

"It's very undignified," the Oscar-winner retorted. "See. I told you."

To finish up the famed talk show host asked if his A-list guest would ever come back on the show.

"I'm never coming back," Morgan said, to a round of applause from the adoring crowd.