07913_112906_ledzeppelinwenn_02.jpgLed Zeppelin plays first UK show in 19 years.

Led Zeppelin played its first concert in 19 years, leaving a London audience of 20,000 people calling for more — and the world guessing on whether the band will tour.

Last night’s show, described as “rock’s biggest reunion” by other stars at the O2 Arena, was hailed by fans as immaculately performed. The only disappointment was no announcement on whether it will be the prelude to a longer return.