Currently airing three times a week, “Idol” returns to twice-weekly shows for the elimination of the final dozen. The finale is set for May 24. — Fred Shuster, (818) 713-3676 and [email protected] local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Sherman Oaks-based “American Idol” hopeful Katharine McPhee is still in the running after four more amateur singers were sent home Thursday in the Fox series’ second round of eliminations. McPhee performed Stevie Wonder’s “All Is Fair in Love” on Tuesday, receiving a mixed response from “Idol’s” panel of judges. Randy Jackson, for example, wished she had injected more “personality” into the rendition. But voters at home kept McPhee among the show’s 16 remaining contestants. Those scoring lowest Thursday were Brenna Gethers, Heather Cox, David Radford and Jose “Sway” Penala, who bid farewell to their fellow contestants. Gethers, 25, received the lowest score among females for her version of “Last Dance.” Judge Simon Cowell said the song would indeed be her “last chance.” AD Quality Auto 360p 720p 1080p Top articles1/5READ MORECasino Insider: Here’s a look at San Manuel’s new high limit rooms, Asian restaurant Also getting the boot was Cox, 22, whose performance of Mariah Carey’s “Hero” brought forth the Cowell verdict “ghastly.” Radford, 17, left after singing “The Way You Look Tonight,” which Jackson said had “bored” him. And Penala, 28, was slapped with the tag “karaoke” by Cowell for his version of Wonder’s “Overjoyed.” Also on Thursday’s show, last season’s winner Carrie Underwood sang her hit song, “Jesus, Take the Wheel.” “Idol” rules the ratings, attracting about 30 million viewers per telecast this season. Host Ryan Seacrest said the program has received more than 42 million votes from viewers.