Yusuf Islam - the born-again Muslim edition of legendary singer-songwriter Cat Stevens - was loudly booed by sections of the audience at the opening performance of his European tour at the O2 Arena in Dublin, Ireland.
It was the singer's first large-scale tour since 1976, and his conversion to Islam, and for the first hour or so the audience response was overwhelmingly positive, as he took the stage first with 1970s cohort Alun Davies and later a full, six-piece band.
Later, however, things began to unravel, as he unveiled a live preview performance of Moonshadow, an upcoming West End musical based on his own music, starring ex-Hear'Say vocalist Noel Sullivan in the lead role.
Demanding fans, who had paid upwards of €80 ($100) for the privilege of seeing the veteran songwriter perform, appeared to be mystified and even angered by the turn of events - though the musical theatre portion of the show had been clearly demarcated on tour advertisements.
Quick-witted Islam remarked "Now I know what Dylan felt like" as fans streamed out of the venue, while others had stayed to boo hits like 'Father & Son' and 'Wild World.' The bulk of the audience remained, however, and were treated to two encores, the first of which saw Sullivan return for a duet with Islam.
The second, which Islam announced in advance in order to retain the still apprehensive audience, featured Ronan Keating. In his first live appearance since the death of bandmate Steven Gately, Keating led a duet of Islam's classic 'Father & Son,' which had been a number one hit for Boyzone in the mid-90s.