Rolling Stones rehearsing 70 songs for upcoming gigs

Singer Mick Jagger said the Rolling Stones had rehearsed around 70 songs for a series of 50th anniversary concerts later this year, and guitarist Keith Richards assured fans the veteran British rockers would "deliver."

The four Stones appeared on the red carpet on Thursday for the world premiere of "Crossfire Hurricane," a documentary charting the meteoric rise to fame and fortune following their debut in London in 1962.

Jagger, who is 69, Richards, fellow guitarist Ronnie Wood and drummer Charlie Watts posed for photographers before speaking to the media on their way into the movie theatre in London's Leicester Square.

"Rehearsals are going very well, (we've) done about 70 different songs," Jagger told reporters. "I said, 'look, we only need to do 30, we don't need to do 70, but now we are doing 70. I don't know if we will do them all."

Richards added of the upcoming gigs in London and New York: "You know, we are looking forward to a great time. See, it's a two-way thing. It's to do with all these people and it's to do with us, we will deliver alright - one love."

The band, one of the most successful in rock history and behind songs like "(I Can't Get No) Satisfaction," "Honky Tonk Women" and "Angie," is marking its 50th birthday with a greatest hits album, photo book, exhibitions, documentary and gigs.

The Stones will play the O2 Arena in London on November 25 and 29 before crossing the Atlantic to perform at the Prudential Center, Newark, on December 13 and 15. Jagger has hinted that the band could play more dates in the future.