The 53-year-old TV host made the comments on CNN's 'New Year's Eve Live' special.
Obama said Bo loved spending time with the late actress during her 2012 visit to the White House.
The 'Party in The U.S.A.' singer also addressed the mishap in between lyrics.
The momager said Stormi's appearance was a 'nice distraction.'
The co-stars reunited for 'Harry Potter's 20th Anniversary special, streaming now on HBO Max.
The couple already shares a 2-year-old daughter, Kingsley.
The Duke and Duchess of Cambridge are ringing in 2022.
Hollywood took time to celebrate Betty White's life and long-running, celebrated career.
White's longtime crush paid tribute to the legendary actress.
Watch Betty White’s best and funniest moments with ET over the years, from on set of 'The Golden Girls' to at home with her pups.
Betty White has died. She was 99.
ET takes a look back at the 'Golden Girls' star's life and legacy.
The longtime actress died just shy of her 100th birthday.
ET remembers the celebrities who died this year.
