Dick Clark Productions announced Thursday that the Seattle group will join Kendrick Lamar and Luke Bryan on the stage for the Nov. 24 awards show in Los Angeles.
Previously announced performers include Miley Cyrus, One Direction, Imagine Dragons and Florida Georgia Line.
Macklemore & Ryan Lewis lead with six nominations, including artist, new artist and single of the year for "Thrift Shop."
Taylor Swift and Justin Timberlake have five nominations each, while Robin Thicke, Rihanna and Florida Georgia Line have four each. Bruno Mars and Imagine Dragons are both up for three awards.
The AMAs will air on ABC from the Nokia Theatre L.A. Live.