Lady Gaga Surprises Fans By Singing 'Shallow' With U2 At Las Vegas Sphere

Lady Gaga shocked fans when she joined U2 onstage at the Las Vegas Sphere on Oct. 25! The singer belted out several songs with the group, including her Oscar winning hit "Shallow." Her "A Star Is Born" co-star, Bradley Cooper, is dipping his toes back into the music world, playing conductor composer Leonard Bernstein in the upcoming film "Maestro." The film, which hits theaters Nov. 22, is already getting Oscar buzz and has many thinking it could earn Bradley his first Academy Award. In more music news, Jay-Z is a cool dad! In a preview for an upcoming "CBS Mornings" interview with Gayle King, he revealed his 11-year-old daughter Blue Ivy turns to him for fashion advice and after years of trying she finally thinks he's cool.