On December 15, 2008, Dre appeared in the remix of the song "Set It Off" by Canadian rapper Kardinal Offishall (also with Pusha T); the remix debuted on DJ Skee's radio show. At the beginning of 2009, Dre produced, and made a guest vocal performance on, the single "Crack a Bottle" by Eminem and the single sold a record 418,000 downloads in its first week and reached the top of the "Billboard" Hot 100 chart on the week of February 12, 2009. Along with this single, in 2009 Dr. Dre produced or co-produced 19 of 20 tracks on Eminem's album "Relapse". These included other hit singles "We Made You", "Old Time's Sake", and "3 a.m." (The only track Dre did not produce was the Eminem-produced single "Beautiful".).