"Kiss the Girl" and "Poor Unfortunate Souls" both received updates for the new film.
The pop star's character in the A24 project is still unknown.
"That was my mommy!" she said in a message to her "future baby."
Niall Horan was left with a tough decision to make.
Director Rob Marshall laid out the reasons in a new interview.
The two have been teasing a collaboration for days.
The new teaser -- soundtracked by a Beach Boys hit -- also provides the first true look at Barbie Land.
Team Niall's singers were hard to separate.
The duet that had all the makings of a LaLa Land special -- drama, struggle, tears and success.
The full episode airs on Tuesday (April 4) on NBC.
