Ashton Kutcher, other celebs Tweet reactions to Steve Jobs' death

Slideshow posted in Photos | Wednesday, October 05, 2011

15 of 30: "#youchangetheworld we lost a great innovator...steve jobs designed a whole new world...he will be missed...," Will.i.am wrote on Twitter, referring to the death of Apple co-founder Steve Jobs on October 5. The 56-year old computer entrepreneur and inventor had battled cancer in 2004 and underwent a liver transplant in 2009 after taking a leave of absence for unspecified health problems. (Pictured: Black Eyed Peas member will.i.am sings with students at the launch of a new Peapod Adobe Youth Voices Academy in New York, Tuesday, April 19, 2011.) (AP Photo / Charles Sykes)