O'Donnell calls his 'NCIS: Los Angeles' co-star 'a force to be reckoned with.'
Season 8 of NCIS: Los Angeles premieres on Sunday, and ET stopped by the set where star Chris O'Donnell compared it to a family reunion.
The swimmer is enjoying some much-deserved time off following the 2016 Summer Olympics.
We knew they were athletic, but now we know, they can lip sync too!
The gold medal winners showed up to throw down on Sunday night.
Co-host Chrissy Teigen jokes to ET, 'We're going to have a wardrobe malfunction.'
The '21 Jump Street' star went back to school!
The 'NCIS: Los Angeles' star and his mother Ondrea sat down with ET to share their fondest (and most embarrassing) memories of LL's upbringing.
You almost fooled us, LL!
This is too much awesome for one stage.
The singer is set to open the show -- but will she bring up Kanye West? Hit the piano? ET is with host LL Cool J.
From where to watch to who's performing, ET's got you covered on all the gotta-know-it info ahead of music's biggest night.
LL Cool J stopped by ET to give a preview of what the GRAMMY Awards has in store for viewers on Monday, and he could hardly contain himself.
The returning GRAMMY host gave us a preview of what the awards show has in store for viewers on Monday.
