Jack Osbourne, son of co-host Sharon Osbourne, discusses his multiple sclerosis diagnosis on THE TALK joined by his fiancé Lisa Stelly, Wednesday, June 20, 2012 on the CBS Television Network.Sheryl Underwood, from left, Sara Gilbert, Jack Osbourne, Sharon Osbourne, Aisha Tyler and Julie Chen, shown. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Jack Osbourne, son of co-host Sharon Osbourne, discusses his multiple sclerosis diagnosis on THE TALK joined by his fiancé Lisa Stelly, Wednesday, June 20, 2012 on the CBS Television Network. Sheryl Underwood, from left, Sara Gilbert, Lisa Stelly, Jack Osbourne, Sharon Osbourne, Aisha Tyler and Julie Chen, shown. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Rock legend Pat Benatar and Neil Giraldo perform on THE TALK, Wednesday, June 20, 2012 on the CBS Television Network. Sheryl Underwood, from left, Sara Gilbert, Neil Giraldo, Pat Benatar, Sharon Osbourne, Aisha Tyler and Julie Chen, shown. Photo: Monty Brinton/CBS

Jack Osbourne, son of co-host Sharon Osbourne, discusses his multiple sclerosis diagnosis on THE TALK joined by his fiancé Lisa Stelly, Wednesday, June 20, 2012 on the CBS Television Network. Jack Osbourne, from left, Sharon Osbourne, shown. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Jack Osbourne, son of co-host Sharon Osbourne, discusses his multiple sclerosis diagnosis on THE TALK joined by his fiancé Lisa Stelly, Wednesday, June 20, 2012 on the CBS Television Network. Lisa Stelly, from left, Jack Osbourne and Sharon Osbourne, shown. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Jack Osbourne, son of co-host Sharon Osbourne, discusses his multiple sclerosis diagnosis on THE TALK joined by his fiancé Lisa Stelly, Wednesday, June 20, 2012 on the CBS Television Network. Lisa Stelly, from left, Jack Osbourne and Sharon Osbourne, shown. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Rock legend Pat Benatar and Neil Giraldo perform on THE TALK, Wednesday, June 20, 2012 on the CBS Television Network.Neil Giraldo, from left, Pat Benatar and Sharon Osbourne, shown. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

Jack Osbourne, son of co-host Sharon Osbourne, discusses his multiple sclerosis diagnosis on THE TALK joined by his fiancé Lisa Stelly, Wednesday, June 20, 2012 on the CBS Television Network. Jack Osbourne, from left, Sharon Osbourne, Aisha Tyler and Julie Chen, shown. Photo: Monty Brinton/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.