The performance earned them mixed reviews with two judges, Kelly Rowland and Demi Lovato, pointing out how uncomfortable the couple looked when not near each other(the performance featured them separated by a wall), to their mentor Simon Cowell expressing his own disappointment over how the performance went.
The cristicism didn't stop voters from putting Alex & Sierra through to the next week.
He praised Alex & Sierra on their performance, calling it "original" and "unique". For Motown Night, they took on "I Heard It Through The Grapevine" by the great Marvin Gaye, which earned them praise. which happened due to a graphics error that nullified the votes, Alex & Sierra sang "Give Me Love" by Ed Sheeran.
Their debut single, "Scarecrow", was released on June 23, 2014 with their debut album, It's About Us, being released on October 7, 2014.
They posted the song's lyric video, which features muppets, on VEVO on May 27, 2014.
On July 9, 2014, singer Colbie Calliat announced that Alex & Sierra will be opening for her on her upcoming Gypsy Heart Tour, which kicked off on August 27, 2014 in Denver, Colorado.
They later hit the road with singer-songwriter Andy Grammer and the band Paradise Fears for the Good Guys and A Girl Tour, which kicked off on February 24, 2015 in Seattle, Washington and ended on April 3,2015 in West Hollywood, California.
In this part of the competition, Alex & Sierra took on the John Travolta/Olivia Newton-John classic "You're The One That I Want" from the 1978 musical film Grease.
The judges praised them for putting their own twist on the song.
Their "Diva" song was "Say My Name" by Destiny's Child, which did make Alex & Sierra nervous because they were going to be singing the song in front of Kelly Rowland, who had been a member of Destiny's Child. Their "Unplugged" song, "Say Something" by A Great Big World and Christina Aguilera, was a risk for them because of Sierra deciding to play piano on the song.
However, the performance worked for them and earned them well deserved praise by the judges.
Alex and Sierra both auditioned for season 12 of American Idol, with Alex making it to Hollywood week and producers saying no to Sierra. Alex & Sierra auditioned in New Orleans and wowed the judges with a stripped-down version of the Britney Spears song "Toxic", resulting in them getting four yeses.