Dr. Dre will join his protege, Eminem, onstage at this Sunday’s Grammy Awards. It will be Dre’s first live television performance in more than a decade. Eminem is up for 10 awards (he’s won a total of 11 Grammys since breaking onto the scene in 1999). Dre is also up for album of the year, as a producer on “Recovery.” A new Dr. Dre album, “Detox,” is expected out in the spring. It will be his first studio album since 1999.