: The song famously uses an interpolation of the 1970s French pop song "Mais dans la lumière" by Mike Brant, which gives it a unique, atmospheric sound.
: The song is a rare collaboration between three of the biggest names in Shady/Aftermath history: Eminem, Dr. Dre, and 50 Cent.
: A demo exists where Eminem performs reference vocals for Dr. Dre's verse, showcasing how he guided his mentor's delivery.
: An unfinished version, often referred to as "Number One," leaked in late 2008 on various mixtapes.