Lady Gaga sends Tony Bennett a special birthday message...

Lady Gaga has sent veteran crooner Tony Bennett a special message to celebrate his 85th birthday.

The eccentric star sent a video message to the I Left My Heart in Sanfransisco singer online.

The Bad Romance recorded the heartfelt video in New York last week during a break from working on a duet with him for his upcoming album.

Wearing a cropped green wig, she sings Happy Birthday to Bennett and says: "Have a whisky for me!"

Bennett turned 85 on yesterday (3 August).

Gaga recorded The Lady is a Tramp with the crooner for his album: Tony Bennett: Duets II.