In this week's A-List Insider: Sharon and Ozzy Osbourne split amid cheating rumours, Rita Ora quits X Factor and Eva Mendes and Ryan Gosling secretly welcome their second child.

Sharon and Ozzy to split

After 33 years of marriage, it looks as if it's all over for Sharon and Ozzy Osbourne . The former X-Factor judge has thrown the Black Sabbath frontman out of their marital home after reportedly discovering proof of his alleged relationship.

According to The Sun, she was fuming when she confronted him over his affair with celebrity hairstylist Michelle Pugh. But Ozzy insists that the only thing he is guilty of is getting friendly with the 45-year-old.

They have had one of the longest-lasting relationships in showbiz but it hasn't been without its ups and downs. Ozzy has struggled with addition for decades and earlier this year Sharon revealed that she once found him in bed with two of their nannies.

Rita Ora quits X Factor

Over in the music business world, Rita Ora has quit The X Factor after just one series. The pop star, who Simon Cowell poached from The Voice UK for a reported £1.5m, confirmed that she would not be returning to the talent show in a post on Twitter insisting that "she had a ball".

The X Factor UK
2015 X Factor judges Nick Grimshaw, Cheryl Fernandez-Versini and Rita Ora with Simon Cowell The X Factor UK/Twitter

Her exit follows the departure fellow judges Cheryl Fernandez-Versini and Radio 1 DJ Nick Grimshaw, meaning Simon Cowell is the last man standing from last year's line-up. There is still no word on who will form the new-look line-up, but on a brighter note Dermot O'Leary will return as host the show after quitting in 2015.

Eva Mendes and Ryan Gosling have a second child

And finally, if you want to know how to keep a secret in Hollywood, you may want to want to give Eva Mendas and Ryan Gosling a call. The power couple, who have been dating since 2011, welcomed their second child last month and nobody knew about it.

TMZ let the cat out of the bag after it obtained a copy of the official birth certificate, which revealed that that Amada Lee was born on 29 April at the Providence St John's Health Center in Santa Monica. The superstar couple are already parents to 20-month-old Esmeralda Amada.