Host Adam Levine. Kendrick Lamar performs "Swimming Pools (Drank)" and "Poetic Justice". Sketches include Rosetta Stone, Advice Show, Sopranos High, Firehouse Incident and Digital Short: YOLO, Weekend Update with guests Arianna Huffington and Ray Le... (more)wis, Rumble, Catfish, Adam and Janet and Underground Festival: Biden Bash.