Music mogul Simon Cowell says his "X Factor" co-judge and singer Cheryl Fernandez-Versini aka Cheryl is the "happiest he has ever seen her".

It's the effect of marrying French restaurateur Jean-Bernard Fernandez-Versini, reports mirror.co.uk.

Cowell, 54, said: `Cheryl is the happiest I have ever seen her. Her new husband is a great guy."

After returning from Mustique, Cheryl had a second wedding party in London where she looked stunning wearing a black Ralph and Russo haute couture gown with a see-through skirt.

The duo got married last month. However, Cheryl has not commented on her married life yet.