"It seems like it wasn't that long ago," Seacrest tells ET.
The superstar also opened up about Kelly Clarkson's powerful performance on Thursday's show.
Kelly Clarkson made her emotional return to the American Idol stage and reduced the judges to tears with her heartbreaking performance of 'Piece by Piece.'
The judge opened up about his tear-soaked reaction to Clarkson's deeply personal song performance on Thursday's 'American Idol.'
The singer opened up to ET about why he sobbed during the former champ's heartbreaking performance on Thursday's show.
After the former 'American Idol' champ sang her emotional new song, the entire audience was brought to tears.
The first 'Idol' champ made her triumphant return to the singing competition on Thursday.
J.Lo adorably freaks out over Sonika Vaid's latest performance.
Although six 'American Idol' alumni returned to the music competition show, only Sparks and Daughtry saw both the contestants they mentored advance to the next round.
Kellie Pickler and David Cook also proved their MVP status during Thursday's episode.
The judge made it very clear on Wednesday night -- she's a HUGE fan of the 19-year-old singer.
Rapattoni's performance of 'Rebel Yell' left J.Lo speechless.
Everyone may have been looking forward to the country crooner's return, but his fellow alums, Lauren Alaina and Fantasia, were the real standouts.
The singer performed a flawless rendition of 'Proud Mary' on Wednesday's show.