Lady Gaga stepped out onto the Grammy stage tonight for the evening’s tribute to the late David Bowie. The singer channeled his look and costumes as she ran through a medley of his biggest hits, including “Space Oddity,” “Changes,” “Ziggy Stardust,” “Fame” and “Heroes.” She was backed by a horn section and orchestra, with Chic’s Nile Rodgers on guitar. Rodgers produced Bowie’s 1983 album “Let’s Dance” and was the music director for this Bowie tribute.