Bennett: Public shocked by Lady Gaga voice

Tony Bennett says people are shocked by "how wonderful" Lady Gaga sings.

The 88-year-old crooner - who teamed up with Gaga, 28, for their new jazz album 'Cheek to Cheek' - believes the collaboration has brought out the best in the 'Pokerface' singer and insists she has "never been happier in her life".