Barbra Streisand surprised fans when she announced that she would be touring and then double shocked them with a duet with her son Jason Gould, from her first marriage to actor Elliot Gould.

Check out this amazing video a fan posted from her concert in Philadelphia a few weeks back of her and Jason performing  “How Deep Is the Ocean”.

Look out for Babs in her next movie playing Seth Rogen‘s mother in The Guilt Trip, opening Christmas Day.