Pork and Beans video guide

0:00 - 0:19 - "guitar" - guitar90; (now: funtwo - Canon), real name: Lim Jeong-hyun
0:16 - 0:17 - "Numa Numa Dance" - Gman250, real name: Gary Brolsma
0:19 - 0:22 - "Dramatic Chipmunk"/"Undramatic Chipmunk" - CollegeHumor
0:22 - 0:28 - "Afro Ninja" - PS2 Tekken 5 TV commercial - real name: Mark Hicks
0:31 - 0:38 - "Diet Coke + Mentos" - eepybird.com, real names: Fritz Grobe, Stephen Voltz
0:38 - 0:41 - "G.I. Joe PSAs" - recreation, originally created by Eric Fensler
0:47 - 0:52 - T-Shirts ???
0:59 - 1:04 - Leave Britney Alone
1:04 - 1:07 - All your base are belong to us
1:10 - 1:16 - "Miss South Carolina Teen USA" - Lauren Caitlin Upton
1:24 - 1:26 - "Crank That" by Soulja Boy, dance
1:26 - 1:30 - "The Evolution of Dance"
1:30 - 1:37 - "Chocolate Rain" - Tay Zonday

piano ???