Rolling Stones Tour 'Warm-Up' Gig Makes Waves

The Rolling Stones have cemented their status as rock stars over the weekend with a surprise "warm-up" performance before their 50 and Counting Tour.

Although the tour saw a delay, the iconic rock group is scheduled to kick off 50 and Counting in Los Angeles at the Staples Center on May 3.

Legendary in the music world, the Rolling Stones delivered a surprise performance at L.A.'s small Echo Park club Saturday night, according to The Los Angeles Times.

The show was announced by the venue via Twitter just hours earlier and a limited number of tickets were offered just for $20.

During the 90-minute performance, the Stones got the crowd screaming with songs such as "You Got Me Rocking" as well as cover songs including Otis Redding's "That's How Strong My Love Is" and Chuck Berry's "Little Queenie," among others.

Among the concertgoers Saturday were famous faces such as Bruce Willis, Johnny Depp, Amber Heard, Gewn Stefani, and Skrillex, according to ABC News.

Meanwhile, tickets to Saturday's show cost a fraction of those to the 50 and Counting Tour.

The official tour will permit thousands of fans to enjoy live performances by the group.

The 50 and Counting Tour commemorates the group's 50th anniversary and will see 17 dates in 10 cities. It was announced earlier this month and will see stops in Oakland, Las Vegas, Anaheim, Toronto, Chicago, Montreal, Boston, and Philadelphia.

Initially, the Stones had performed a batch of concerts in late 2012 in London, Newark, and Brooklyn.

"50 and Counting has been pretty amazing so far," said Jagger on the band's website. "We did a few shows in London and New York last year … and had such a good time that we thought… let's do some more."

"It's a good show," added the singer. "Lots of the classic stuff everyone wants to hear … with a few little gems tucked in here and there. The stage is shaped like lips and goes off into the venue so I get to run around in the crowd. It's great fun to be able to get that close to the audience."

Formed in London in 1962, the Rolling Stones consisted of Brian Jones on guitar and harmonica, Iam Stewart on piano, Mick Jagger on lead vocals and harmonica, Keith Richards on guitar and backing vocals, Bill Wyman on bass and Charlie Watts on drums.

Following the death of Jones and Wyman's retirement, Ronnie Wood joined the group in 1975.

The Stones are best known for their hit songs "Not Fade Away," "Tell Me (You're Coming Back)," and "(I Can't Get No) Satisfaction," among countless others.

They are listed on Billboard magazine's "100 Greatest Artists of All Time" and have sold an estimated 200 million albums worldwide.