September 12, 2014 7:12 am Rapping Science Teacher Surprised by Lil' Jon on “Meredith” A rapping science teacher visited “The Meredith Vieira Show” and was surprised by special guest Lil’ Jon. US & World Videos 5:49 Kelly Clarkson hilariously attempts handmade pasta with chef Evan Funke 1:36 O.J. Simpson's cause of death revealed 2:03 Does Shakira still believe in love following Gerard Piqué split? 2:36 Super dad makes Mario-themed obstacle course for son's birthday 1:59 Ellen DeGeneres jokes about being ‘kicked out of show business'