CNN Showbiz — It was not Usher's finest moment. more info

People.com — The performer, who is suffering from an upper respiratory illness, will reschedule his European shows in March more info

411 Mania — What's wrong with Usher? more info

ContactMusic — Sick R&B star USHER has postponed a further two dates on his European tour after a doctor prescribed bed rest to fight off a respiratory illness.The Yeah! hitmaker pushed back a planned gig at the O2 World in Berlin, Germany on Wednesday (12Jan11) af... more info

Perez Hilton — At least this time he made an effort to perform. We reported yesterday that for some unexplained reason, Usher had to cancel his Wednesday night concert in Berlin. This morning, we have the reason, as one of our Perezilicious readers was in the audie... more info

TMZ — Filed under: Usher, Usher Raymond, Music Usher has canceled two upcoming European concerts after coming down with some sort of "upper respiratory illness" ... this according to the singer's rep. Just yesterday ... more info

Yahoo! Music UK — world entertainment news - R&B star Usher has pulled out of a show in Rotterdam, Holland on Friday night, just a day after cutting short a concert in Berlin, Germany. more info

ContactMusic — R&B star USHER has pulled out of a show in Rotterdam, Holland on Friday night (14Jan11), just a day after cutting short a concert in Berlin, Germany.The Yeah! hitmaker was diagnosed with a sinus infection earlier this week (begs10Jan11) and postponed... more info

411 Mania — Usher's sick... more info

Yahoo! Music UK — world entertainment news - R&B star Usher pulled out of a concert in Berlin, Germany on Wednesday night, after falling ill with a sinus infection. more info