Leonard Cohen celebrated his 75th birthday in Barcelona at the last concert of his 10-date Spanish tour, just three days after collapsing on stage before 6,000 fans at a sell-out in Valencia.

Some 14,000 fans at the Palau Sant Jordi stadium stood up and applauded after four songs, which was the point when Cohen fainted at the Velodromo Lluis Puig in Valencia.

According to reports, the veteran Canadian artist showed no signs of fatigue or discomfort at the Sept. 21 show, and responded to the birthday applause and singing of 'Happy Birthday' from the audience by taking his hat off and saying "Thank you for your congratulations, I don't know when I'll be able to celebrate this way again."

The Valencia incident was described by doctors as not serious and caused by a digestive problem, but the show was called off despite Cohen's desire to carry on, said guitarist Javier Mas.

When Cohen introduced the eight members of his band "to the city of Barcelona," he began with Mas and ended with back-up singer Sharon Robinson, who he described as "my secret wife and collaborator."

The Barcelona concert was also the end of Cohen's 30-gig European tour, which ended a 16-year silence by the singer in Europe. His first concert in Spain was 35 years ago.

Mas said Cohen hoped to return to Valencia at some point in the future to give a full concert, and in theory a date will be announced shortly.

The Valencia concert organizers said the entrance price will be returned automatically to those who bought tickets online from ticketmaster.es or by phone. Those who bought tickets from official sales points should go to those outlets for a refund.

Cohen is due to play Ramat Gan Stadium at Tel Aviv on Sept. 24, and will start his U.S. tour at Bank Atlantic Center in Ft Lauderdale, Florida on Oct. 17.