Jack Osbourne's wife Lisa Stelly filed for divorce last week and now In Touch sensationally claims to have learned of Jack's alleged infidelity.
The publication explosively alleges that Jack's wife Lisa learned of his affair with Kayti Edwards, the granddaughter of Julie Andrews.
In Touch alleges the pair were spotted outside a hotel in Los Angeles on April 11.
'It was the Courtyard by Marriot', an eyewitness reportedly told In Touch.
'Jack seemed nervous and was looking around a lot.'
According to the source, Jack and Lisa, who have been married six years and share three daughters - Pearl, 6, Andy, 2 and Minnie, 3 months, have been fighting a lot, which lead to their split.
Jack Osbourne, Lisa Shelly and Kayti Edwards have not responded to In Touch's claims.