NBC's The Voice said farewell to two more singers Tuesday on its live results show.  Seventeen-year-old RaeLynn and Ashley De La Rosa, also 17, are the latest contestants to be sent home.

Chris Mann, representing Team Christina, and Jermaine Paul, representing Team Blake, advanced to the semi-finals - thanks to America's vote - but the other contestants who performed on Monday had to sing again on the results show, and hope their respective coach/judge would save them. After their performances, Christina Aguilera saved Lindsey Pavaro and sent De La Rosa home.  Blake Shelton saved Erin Willett and sent RaeLynn packing.

The eight hopefuls being mentored by Cee Lo Green and Adam Levine will go through the same process next week.

Justin Bieber made an appearance to showcase a clip from his new video for his tune "Boyfriend." Bieber also announced that his album, Believe, would drop June 19.  The Bieb also promised to appear on the finale of The Voice to perform "Boyfriend" live.

The results show also featured a performance by the U.K. boy band The Wanted, who treated the screaming audience to the single "Chasing the Sun."

Here's a rundown of the face-off between the four singers who hoped to be saved:

Team Christina:

Ashley De La Rosa sang Lady Gaga's "You and I." Adam said it was a "rollercoaster" feeling at this stage but this was not his favorite Ashley performance.  Still, Blake said he was won over by Ashley and would buy her record if it came out.

Lindsey Pavaro crooned "Please Don't Go," by Mike Posner and lost the last few notes as she cracked into tears. Cee Lo said he saw a lot of charm in Lindsey, and Blake thought that there was something mysterious about her.

An emotional Christina said she was voting with her heart and saving Lindsey.

Team Blake:

Erin Willett stepped up to sing "Proud Mary," by Credence Clearwater Revival. Christina loved the energy and called the performance an "amazing effort."

RaeLynn sang "If I Die Young," by The Band Perry. Adam said he would have handled RaeLynn differently if she had been on his team, but she "owned" the songs she sang.

Blake told the two girls he loved both of them.  He hesitated with his decision but after being urged by host Carson Daly to make his choice, Blake announced he was saving Erin as the show's closing credits rolled.