LOS ANGELES (Reuters) - How does it feel for Mick Jagger to be back on tour at the age of 80, singing, dancing, and striding across stadium concert stages?

"It's like being on stage at 78," the Rolling Stones frontman, who has captivated audiences for over six decades, stated the day after performing a sold-out show outside of Boston.

"It took a couple of shows to get into the groove, but now we're into it," according to Jagger. "I'm feeling good."

In the 1960s, he performed the song "What a drag it is getting old." However, Jagger, who will be 81 years old on July 26, is still enjoying himself and has no intention of ceasing his musical activities in the near future.

Jagger stated in an interview that the group will investigate opportunities to perform in other countries next year while currently touring the United States on the "Hackney Diamonds" tour.

"We'll consider those offers, where we're going to go and where it will be fun, you know?" he indicated. "It could be Europe, could be South America, could be anywhere."

Jagger also said the Stones are likely to release more new music shortly.

The current tour is named for the critically praised album the Stones debuted last October, the first new material from the British musicians in 18 years.

At each visit, Jagger commands the stage for two hours with companions Keith Richards, 80, and Ronnie Wood, 77. Fans say Jagger still provides a vigorous performance full of gyrating, pounding, sprinting and his world-famous arrogance.

In a review titled "The Rolling Stones Really Might Never Stop," the New York Times said Jagger, at a show at a football stadium in New Jersey, seemed to get more energetic as the night wore on.

Where Does He Find Such Energy?

"I just enjoy it," Jagger said. "Really, that's the solution. I just enjoy doing it.

"You get this back and forth with the audience. You can see they're having a good time, you're having a good time, and it gives you a lot more vitality."

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Music Legends May Join Jagger

Jagger said he remains trim by doing two dance rehearsals and a few gym exercises each week. His father was a physical education teacher and Jagger has often credited his excellent health to heredity.

On the tour, the Stones perform about four songs from "Hackney Diamonds" in between rock classics such as "Start Me Up," "(I Can't Get No) Satisfaction" and "Sympathy for the Devil." The set schedule is modified for each visit.

Fans appear to have adopted the new music, Jagger said. He sees people in the audience singing along to the lyrics.

Coming up, Jagger said he hopes to be accompanied on stage by some of the music luminaries who made guest appearances on "Hackney Diamonds" - Paul McCartney, Lady Gaga, Stevie Wonder and Elton John - but said he does not yet have commitments. "It's hard pinning them down," he said.

The Stones recorded many compositions that did not make it onto "Hackney Diamonds," which may lead to another album, Jagger said.

"We've got a lot more, so I think we may be set up to make another album quite soon," he said.

Outside of music, Jagger is producing a film about the love tale between jazz pianist Miles Davis and French actress and vocalist Juliette Greco, as well as a movie adaptation of "The Real Thing," a play by British playwright Tom Stoppard.