'Rising Star 'Recap: Contestants Advance, West Coast Viewers Save One Other

— -- ABC's interactive singing competition, "Rising Star," began its live head-to-head singing duels Sunday night with four contestants advancing and two other acts being sent home after the East Coast vote.

Two contestants were chosen to go head-to-head; a coin toss determined which one would sing first with the wall up. The winner of the coin toss got to decide the order of performance.Viewers who downloaded the “Rising Star” app were asked to vote “yes” or “no,” just as they did in the audition round. The next contestant then sang with the wall down and had to beat the mark set by the first contestant in order to raise it.

The one-hour show aired live on the East Coast, but viewers on the other side of the country had the chance to “save” the performer with the highest combined votes who didn't win their matchup.

Host Josh Groban and the “Rising Star” "experts" -- Kesha, Ludacris and Brad Paisley -- presided over the duels. The "experts" were allowed to vote. So were West Coast viewers, even though they watched the show on delay.

The experts also mentored each contestant before their performances.

All the advancing contestants will compete in the quarterfinals.

The ultimate winner receives a contract with Capitol Records.

'Rising Star' Recap: On the Final Night of Auditions, Five Contestants Advance

Here are the highlights from Sunday night:Lisa Punch vs. Alice J. Lee: Alice went first and sang “Wings,” by Little Mix. She set the bar with 69 percent of the vote. Prior to the performance, the experts agreed the best strategy for Lee was to utilize her voice in order to beat Punch’s theatrics. Afterward, all three agreed she was up to the task. Brad voted yes, noting that Alice was a seasoned pro who had the “soul” and “commitment.” Kesha enjoyed the performance, noting Lee’s “energy was great.”

Ludacris believed Alice did her “homework,” agreeing with Kesha that the singer returned with a lot more energy this time. Lee advanced to the quarterfinals.

Lisa followed with a version of Pink’s “Perfect” that fell just shy of the votes needed to beat Alice, earning 66 percent. Earlier, the experts cautioned her that by performing with the wall down, she would have to work harder at engaging the audience with her vocals, rather than her stage presence.

Ludacris felt the pressure of the competition may have gotten the better of her and voted “no.” Kesha liked the performance, voting "yes" and hoping the West Coast would save her. Brad voted “no,” pointing out that he was looking for someone who was ready and Lisa, unfortunately, wasn’t. Punch was ultimately saved by the West Coast and moved on to the quarterfinals.

Sara Darling vs. Megan Tibbits: Megan accompanied herself on the harp during her audition and just squeaked by, being saved by the West Coast. She started things off with “Summertime,” from the Broadway show “Porgy and Bess.” This time, however, she was “ditching” the harp and playing the guitar.

The experts agreed Megan’s ability to play guitar and sing would work to her advantage in a faceoff against Darling, who only sang. Tibbits set the bar with 71 percent of the vote. Kesha voted “yes,” noting Megan’s voice was “phenomenal,” adding she was “obsessed” with Megan and “dreaming” about her.

Brad thought she did great and admired her command of instruments, complimenting her voice as well. Ludacris felt she deserved the title of “most improved,” saying the switch from harp to guitar was a move in the right direction. Tibbits advanced to the quarterfinals.