From Jimmy Fallon introducing Danny Devito to Flip Cup, to Christie Brinkley's super grown-up (and fiercely good-looking son!), here's what some of your favorite stars were up to this week.

  • courtesy Getty Images
    courtesy Getty Images
    loading...
    1

    Tyra Banks and J Alexander

    The America's Next Top Model host and her runway coach extraordinaire strike a pose on the red carpet of the Cycle 22 premiere party.

  • Adam Bettcher/Getty Images
    Adam Bettcher/Getty Images
    loading...
    2

    Katy Perry

    The pop star belts out 'Firework' during her appearance at the So The World May Hear Gala in Minnesota.

  • Getty Images
    Getty Images
    loading...
    3

    Christy Brinkley

    The (seemingly ageless) former super model cozies up to her 20-year old son Jack during the 99 Homes movie premiere in Hamptons, N.Y.

  • Getty Images/NBC
    Getty Images/NBC
    loading...
    4

    Danny Devito and Jimmy Fallon

    The Tonight Show host puts a new spin on an old game, putting actor Devito through the paces of Inflatable Flip Cup.

  • Monica Schipper/Getty Images
    Monica Schipper/Getty Images
    loading...
    5

    Ireland, Alec & Hilaria Baldwin

    The actor gets playful with his teenage model daughter (w/former wife Kim Basinger) and yoga guru wife during an outing in NYC.

More From SoJO 104.9 FM