ACM Awards: Taylor Swift performs, Carrie Underwood and Thomas Rhett tie for Entertainer of the Year

The night's big prize was a tie between Underwood and Rhett.

The 55th Academy of Country Music Awards, postponed from April due to the COVID-19 pandemic, took place on Wednesday on CBS, from three Nashville locations -- The Ryman Auditorium, The Bluebird Cafe and the Grand Ole Opry House -- and it was a night of many firsts.

The night's big prize, Entertainer of the Year, was a tie between Carrie Underwood and Thomas Rhett -- the first time that's ever happened.

"Man, 2020," Underwood said in disbelief. Rhett meanwhile, did his best to thank the many people responsible, in just "127 seconds."

Following Miranda Lambert's performance of "Bluebird" at the Bluebird Cafe, host Keith Urban revealed that Lambert took home the trophy for Vocal Event of the Year for "Fooled Around and Fell in Love," her remake of the Elvin Bishop hit on which she traded leads with Caylee Hammack, Elle King, Ashley McBryde, Maren Morris and Tenille Townes. The win gave Lambert her 35th ACM Award -- the most ever.

Other big winners included Luke Combs, who grabbed Male Vocalist and Album of the Year honors for "What You See Is What You Get." Old Dominion were also double winners, walking off with Duo of the Year and Song of the Year for "One Man Band."

The award for Single of the Year went to Blake Shelton for "God's Country." During his speech, Shelton thanked his girlfriend, Gwen Stefani, for "continuing to encourage me to keep doing this and keep trying and being my inspiration." Earlier, the couple performed their duet, "Happy Anywhere."

Dan + Shay took home top duo honors, Maren Morris won for Female Artist of the Year and Townes for new female artist.

Urban returned one more time -- this time on tape -- for a socially distanced performance of "One Too Many," with Pink, the new duet from his album, "The Speed of Now Part 1," coming out this Friday.

Underwood honored country's legendary ladies, with a medley of Patsy Cline's "Crazy," Loretta Lynn's "You Ain't Woman Enough (To Take My Man)," Barbara Mandrell's "I Was Country When Country Wasn't Cool," Dolly Parton's "Why'd You Come in Here Lookin' Like That," Reba McEntire's "The Night the Lights Went Out in Georgia" and Martina McBride's "A Broken Wing."

Trisha Yearwood honored the artists we lost over the past year with rendition of "I'll Carry You Home," from her album "Every Girl."

Other performers included Luke Bryan, Eric Church, Kelsea Ballerini, Gabby Barrett, Kane Brown, Maren Morris, Tim McGraw and Florida Georgia Line. The evening also had some somber moments, beginning with Urban sending thoughts and prayers to people out west battling horrific wildfires, and others on the Gulf Coast threatened by hurricanes.

He also took a moment to address the COVID-19 pandemic and social injustice, noting, "Far too many lives have been lost to both."

Urban gave a shout out later in the show to singer-songwriter Blanco Brown, who is recovering from injuries he suffered in a car accident.