Katie Couric Good Morning AmericaSix years after she left morning television, Katie Couric is back — for a week. The former Today host will fill in for a vacationing Robin Roberts on ABC’s Good Morning America next week. “Katie Couric is going to be sitting in this chair next to George Stephanopoulos,” Roberts said on the air this morning.

 “We’re thrilled to have Katie.” Couric’s ABC deal for a new syndicated daytime show includes ABC News duties. Couric joins GMA when the morning show is on the rise, posting ratings increases and closing the gap with leader Today. For the most recent week with available data, GMA averaged 4.73 million total viewers and a 1.9/12 among adults 25-54 to Today‘s 4.99 million and 1.8/14. “Serious pressure filling in for the fab @RobinRoberts !” Couric tweeted. “Rise + shine! Excited to be back on morning TV next wk, guest hosting @GMA w/ @GStephanopoulos.”