What singer made appearances during Keith Urban's Ripcord World Tour who also the winner of the  fourth season of "American Idol"?
Ripcord World Tour The Ripcord World Tour (stylized as the ripCORD World Tour) was the eleventh concert tour by Australian singer Keith Urban. The tour was in support of his tenth studio album "Ripcord" (2016). The tour began on 2 June 2016 in Bonner Springs, Kansas and concluded on 17 December 2016 with two shows in Brisbane, Australia. Brett Eldredge, Maren Morris and Dallas Smith were supporting acts for Urban in North America. The Oceania leg of the tour was co-headlined with American singer Carrie Underwood, with Buchanan as opening act.
Meleana (musician) Meleana Brown (born September 11, 1988), who goes by the stage name Meleana, is an American Christian musician. She started her music career, in 2003, with appearing on "American Idol" during season 3, where she was eliminated during Hollywood Week. Her next appearance was on the only season of "Duets". Brown signed with Dream Records, where they released her first studio album, "White Walls" (2016).