“American Idol” contestants did such a totally tubular job with songs from the 1980s Wednesday night that judge Steven Tyler had a flashback. “I forgot where I was,” Tyler joked after listening to DeAndre Brackensick’s version of Debarge’s “I Like It.”AP PHOTO / FOX’American Idol’ contestants Skylar Laine, Phillip Phillips, Colton Dixon, DeAndre Brackensick, Elise Testone, Jessica Sanchez, Hollie Cavanagh and Joshua Ledet make up the Top 8. Next came Elise Testone with her take on Foreigner’s classic, “I Wanna Know What Love Is,” but she didn’t get much love for what Randy Jackson said was “out of tune everywhere.”It was smooth sailing for Phillip Phillips, who delivered the Genesis hit “That’s All” to a standing ovation. “You’re just a wildflower, aren’t you?” Steven asked rhetorically. “You just love being who you are. And that transcends, and that’s making you great every time I hear you.”The next performance was the night’s first duet: Colton Dixon was Kenny Rogers to Skylar Laine’s Dolly Parton for “Islands in the Stream.” The verdict: It wasn’t shabby, but Skylar should sing more Dolly songs and Colton should leave Kenny’s songs on an island, in a stream.Doubling up again, Brackensick and Hollie Cavanagh took us back with the Pointer Sisters hit “I’m So Excited,” but we were only slightly amused.It would take Louisiana’s Joshua Ledet to bring back the wow factor with an unbelievable rendition of “If You Don’t Know Me By Now,” by Harold Melvin & the Blue Notes. The 19-year-old admits he’s never heard many of the songs he sings, but he certainly knows how to feel his way around them.How do you follow that? With Jessica Sanchez, of course, who took on “How Will I Know” by Whitney Houston and banked it.Duet time again, and this was one of the best of the night: Phillips and Testone updating “Stop Dragging My Heart Around” by Tom Petty and Stevie Nicks. There has to be one cringer in every show, and this night was no exception. Hollie Cavanagh tried on Irene Cara’s “What A Feeling” and found that it just didn’t fit.The feeling didn’t last. Sanchez and Ledet stormed the stage for their duet, owning Aretha Franklin and George Michael’s “I Knew Your Were Waiting.”The final performance gave Laine a chance to wipe the Dixon duet out of our minds and she sparkled, becoming a countrified Bette Midler, soaring through “Wind Beneath My Wings.”After tonight’s vote, seven contestants will remain. Who do you think deserves to stay? Vote for as many singers as you want the first time, because you can only vote once.