The 'Harry Potter' star was spotted out with the 'Glee' alum in Los Angeles on Thursday.
The reality star danced her dress right off while onstage with Luann de Lesseps.
In 2006, Simpson gave an interview that has never been seen until now.
The 45-year-old singer and CNN correspondent had been linked since last summer.
In a statement to ET, the actor and his wife of nearly 21 years, Livia Giuggioli, confirmed the affair that is said to have occurred between 2015 and 2016.
The 55-year-old actress also opens up to ET about breaking barriers in the film industry.
"At times I feel like there's a saber-tooth tiger right here and it's going to kill me, attack me and bite my head off."
The "Criminal" singer also reveals an exclusive sneak peek of her new music video and shares details about her fresh take on recording John Mayer's classic "Continuum" album.
The couple have been married for nearly 21 years.
ET breaks down all the latest updates from the couple ahead of their May 19 nuptials!
The 38-year-old actress talked motherhood and baby gifts with the 'Late Show' host.
The 36-year-old tennis pro is back with a big win!
The supermodel talked about her ex on 'Watch What Happens Live With Andy Cohen.'
A source tells ET that the pair's relationship has been difficult from the start.
