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.
LaKisha Jones (EP) LaKisha Jones - EP is an EP by "American Idol" season 6 fourth-place finisher LaKisha Jones. Jones performed a song for the show each week of the season, and each song appeared on the show's website the day after the performance for sale as a studio version. The EP is a compilation of the five most downloaded of Jones's studio recordings, all of which are covers of other artists.