The 42-year-old TV star made the announcement on 'Live With Kelly and Ryan.'
The 'Live' co-host sang along with a subway performer on Tuesday.
The former 'American Idol' host sang along with the performer.
The two-day event will also feature performances from Pink, Lorde, The Weeknd, Kesha and many more.
Hough wed hockey player Brooks Laich in Idaho on July 8.
Just because you go separate ways doesn't mean you can't be supportive.
The OG 'American Idol' producer reveals he wants to see Bruno Mars on the judges' panel.
The TV personality experienced a first on Monday morning.
The 'Live' host admitted that he's still not officially signed on to host the ABC reboot.
The word is out how much it could cost 'Idol' to bring Seacrest back as host of the singing competition show.
Ashton Kutcher Reveals What He and Mila Kunis Almost Named Son Dimitri, Gushes Over 'Bachelorette' Rachel Lind
The 'Live' co-hosts are getting ready for summer in the silliest way!
The 24-year-old singer-actress says 'it's too much pressure' to hide a relationship in the spotlight.
'She needs to come out already!' the 37-year-old actress said of her soon-to-be daughter.
