Rosie O'Donnell was so impressed that she immediately invited him to appear on her daytime talk show. Foster called him to stand in for an ailing Andrea Bocelli to rehearse a duet, 'The Prayer,' with Celine Dion at the rehearsal for the Grammy Awards in 1998. The event that changed Groban's life was when his vocal coach, Seth Riggs, submitted a tape of Josh singing, 'All I Ask of You', from The Phantom of the Opera, to Riggs' friend, renowned producer, composer and arranger David Foster. Groban originally studied acting but as his voice changed, it developed into a 'significant instrument'. To date, he has sold over 24 million albums worldwide.
His four solo albums have been certified at least multi-platinum, and in 2007, he was charted as the number one best selling artist in the United States with over 21 million records in this country. Joshua Winslow 'Josh' Groban is an American singer-songwriter, musician, actor, and record producer.