Following in the tradition of being a Black-owned bookstore that fosters conversation and growth, Okpo is having a Juneteenth celebration this Saturday, June 19 from 12pm to 4pm. WithJuneteenth each other (and each other's friends) on Instagram.In aninterviewwithTeen Vogue with the singer and he had this to say about the collab: "Ah, Pitbull is amazing! Nicest guy and he has so much energy in the studio!" As for the track, he promised it would be "fun and upbeat. Pitbull kills his verse as always." And you know what? Dude wasn't lying. We can enthustiastically confirm that it's both fun and upbeat—though Austin has never released music that wasn't both of those things, and that's why we love him. And while getting an invite to the Met Gala is quite the prestigious honor, unfortunately not all on the guest list are able to make it every year. Sometimes there are schedule conflicts with their work life, such as being stuck filming overseas. In certain situations, there are personal matters to tend to at home. We compiled a list of five celebrities who have been regulars at the Met Gala over the years but had to skip out at one point or another.Lady GagaLady Gaga