[cnn-photo-caption image= http://i.cdn.turner.com/cnn/2008/images/05/22/art.obama.ap.jpg caption="Obama will deliver Wesleyan's commencement address."](CNN) - Barack Obama will take Sen. Ted Kennedy's place in delivering the commencement address at Wesleyan University this Sunday.
According to Kennedy's Senate Office, Obama offered to take the Massachusetts senator's place earlier this week after Kennedy was diagnosed with brain cancer.
"Senator Kennedy accepted knowing it would be an historic opportunity for the school and all those attending, including his daughter Caroline Raclin who is graduating and his son Ted Jr. who is attending his reunion," Kennedy's office said in a statement. "He's enormously grateful to Senator Obama and the support he's received from all of his colleagues this last week.”