What a weekend at Lollapalooza in Chicago. Lots of great talent — young and old. And then the threat of storms prompted organizers to briefly evacuate the three-day music festival on Sunday.

Those in attendance were directed to underground shelter sites nearby along Michigan Avenue.

The National Weather Service issued severe thunderstorm warnings in areas west and north of the city Sunday, with wind gusts up to 60 mph and hail.

Lollapalooza kicked off its 2015 edition in Grant Park on Friday with the most popular headliner in the fest's history: Paul McCartney. The annual event attracted 100,000 visitors in a single day on Friday.

Following McCartney, it was Metallica's turn Saturday to prove to the twenty-something crowd at the Chicago mega-fest that the old-timers still have it.

Metallica was the hardest rocking band to headline Lollapalooza since Rage Against the Machine in 2008, when that band's aggressive set got so ugly, they had to stop the show three times and threatened to leave the stage. There also was plenty of fresh, new talent — including punk-flavored pop artist Charli XCX, Tyler, the Creator, rapper Kid Cudi and Django Django.

Besides the music on stage, there was other excitement. Rapper Travis Scott is facing disorderly conduct charges after encouraging fans to jump over security barricades during his performance. The rapper, whose real name is Jacques ­Webster, was arrested Saturday.

Cilla Black dies in Spain

Big-voiced British singer Cilla Black, a product of Beatles-era Liverpool who became a national treasure over a 50-year music and television career, died at her home in Estepona, southern Spain. She was 72. Black's spokesman said the cause of death would be released after a coroner's report was complete. Former Beatle Paul McCartney said news of Black's death came as a shock. "She had a fine distinctive voice and was always a bit of a laugh. It was a privilege to know and love her," McCartney said in a statement. Ringo Starr tweeted: "She was a good friend we will all miss her."

Black was born Priscilla White in Liverpool, England, in 1943. As a teenager she sang part-time and worked in the cloakroom of the Cavern Club, where her musical talent was spotted by rising local stars the Beatles. Signed by the Beatles' manager, Brian Epstein, she had a string of hits starting in 1964 with "Anyone Who Had a Heart," written by Burt Bacharach and Hal David, and "You're My World." Both went to No. 1 in Britain, and the latter also charted in the U.S. By the late '60s she was famous enough to be known by her first name alone, and hosted a BBC variety show, "Cilla." In a tweet, her friend Joan Collins called Black "a resplendent and rare talent."

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