Question: who has been the most successful american idol
Answer: Carrie Underwood ( season 4 , winner ) 16,389,000 Some Hearts ( November 15 , 2005 ) Arista Nashville 7,450,000 8x Platinum Peak : # 2 Carnival Ride ( October 23 , 2007 ) Arista Nashville 3,400,000 4x Platinum Peak : # 1 Play On ( November 3 , 2009 ) Arista Nashville 2,300,000 3x Platinum Peak : # 1 Blown Away ( May 1 , 2012 ) Arista Nashville 1,794,800 2x Platinum Peak : # 1 Storyteller ( October 23 , 2015 ) Arista Nashville 752,100 Platinum Peak : # 2 Cry Pretty ( September 14 , 2018 ) Capitol Nashville 2 .