'I want to personally thank him for changing my life,' Degeneres said on her talk show.
With just days left in office, Obama pushed for national unity and expressed hope in millennials.
After Ellen DeGeneres joked she would be Fifth Harmony's fifth member, Camila Cabello responded with her blessing on Twitter.
'I didn't feel that was good of me to have her on the show,' Degeneres said.
Ellen DeGeneres remembered her 'hilarious' friend Carrie Fisher with a sweet video tribute to her many appearances on 'The Ellen Show.'
'We're not cute kids anymore,' Jackson told Ellen Degeneres.
'I was like the fountain on 'Friends,'' Schumer describes of her horrifying round of food poisoning.
And would Bieber ever use Tinder? He tells 'Ellen' in a new interview.
Shelton told 'Ellen' his new relationship has been a true blessing.
'It's up to us what makes us happy and fulfilled,' Aniston said on behalf of women on 'Ellen.'