Some 15,000 people have descended on the Taupō Amphitheatre today to see acts including Billy Idol, Anastacia and Smashmouth.

Greenstone Entertainment's sold-out Taupō Summer Concert is in its ninth year.

Crowds have been greeted with a hot dry day, setting themselves up with picnic baskets, chilly bins and sunscreen in view of the Waikato River.

Smashmouth took the stage at midday followed by Creedence Clearwater Revisited.

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Also on the bill were Anastacia and George Thorogood and The Destroyers before Billy Idol and his band closes out the day.

The same line-up played to an 18,000-strong sellout crowd in Queenstown last weekend and will head to Whitianga's Waterways Arena tomorrow for another sold-out gig.