U.S. rock super group Aerosmith played its first U.K. gig in eight years at London's Hard Rock Cafe last night (Feb. 19) as a precursor to being a headliner at this year's Hyde Park Calling festival on June 23-24.

Aerosmith will headline the June 24 session before the estimated 50,000 spectators expected at the festival, which is produced by Live Nation in association with Hard Rock Café. The event takes place at London's Hyde Park (location of Live 8 in 2005).

Hyde Park Calling will also represent the start of Aerosmith's first European tour for several years.

The headliners for June 23 and supporting acts for the festival's two days, which is to be broadcast live on Virgin Radio, will be unveiled in the coming weeks.

"We've been trying to get Aerosmith over for the last four to five years," Stuart Galbraith, Live Nation (U.K.) managing director, tells Billboard.biz. "The (Hyde Park Calling) crowd size will be a slight increase on last year, when we had The Who and (ex-Pink Floyd member) Roger Waters headlining. But we shall still have a main outdoor stage and a large indoor marquee."

Tickets for June 24, available via Web sites Livenation.co.uk and ticketrush.co.uk starting Friday (Feb. 23), cost £45 ($87.80). Ticket prices for June 23 will be announced soon.