New songs, featuring contributions from Slash and Duff McKagan, arrive months ahead of a world tour
The rapper is expected to surrender himself to authorities in January after a money laundering and conspiracy conviction
While battling cancer in 1998, Death frontman Chuck Schuldiner recorded an instrumental version of "Frozen"
Vince Gill and Lainey Wilson performed "Go Rest High on That Mountain" during the segment
The revered frontman and reality TV star died "surrounded by love," his family said, just weeks after a massive farewell concert
Duo will also tour North America this fall
Pharrell Williams-produced song features on group's recently released Happy Burstday album