Rice is the first songwriter primarily known for his work in theater to receive this award since Stephen Sondheim in 1999.
"At the end of the day, what matters the most is how you make people feel," the Funny Girl star said.
"Speaker of the House/ Cunning little chap/ Covetous, conservative and full of crap," Rainbow sings of the embattled GOP leader.
Richard Linklater is directing the movie, which also stars Beanie Feldstein & Ben Platt and will be shot over two decades.
The Disney Channel icon shared photos with the Glee alum after seeing the Broadway show.
The Broadway star blamed "drunk scrolling" for her hysterical gaffe.
The revival brought in just above $2 million across eight shows last week, a record for August Wilson Theatre.
The stage adaptation of Cameron Crowe's 2000 film opened on Broadway on Nov. 3.
The superstar is also a producer on the new revival.
The Funny Girl star also opened up about being compared to Barbra Streisand.