The 40-year-old former Take That star, who invited his father Pete Conway to perform with him at London's Palladium in November 2013, is set to work with him again, reported Contacmusic.
Many celebrities including Liam Payne from One Direction, singer Adele and comedian Alan Carr watched the pair duet at the show. They performed Do Nothing Till You Hear It From Me. After the song, Robbie's dad hugged him before leaving the stage to a rapturous applause.
Singer Robbie Williams celebrates his birthday on February 13.
Read: Dad's wedding singer
"I loved doing the Palladium with him. It was great. I really enjoyed it. We're going to do something together soon.
It will be announced shortly - I just don't know all the details yet," Pete said.
Robbie also performed with singer Lily Allen on the show, singing songs from his album Swings Both Ways.