At the 2011 Academy of Country Music (ACM) Awards, Carrie Underwood delivered a memorable performance that showcased her vocal prowess and stage presence, highlighted by a surprise appearance from Aerosmith frontman Steven Tyler. The event took place on April 3, 2011, and marked a significant moment for both artists, combining elements of country and classic rock in an electrifying duet.

Underwood opened the performance dressed in a stunning, form-fitting outfit adorned with sparkles and a black frilly skirt, complemented by her signature blonde hair with red highlights. She began with her hit song “Undo It,” a track that had already reached No. 1 on the country charts. The energy in the auditorium skyrocketed when Tyler emerged unexpectedly, joining her on stage to finish the song. Their chemistry was palpable, and the crowd responded with enthusiastic applause and cheers, with many fans on their feet singing along​.

Following “Undo It,” Tyler transitioned into Aerosmith’s iconic hit “Walk This Way,” further elevating the performance. The duet was not only a display of vocal talent but also an embodiment of Underwood’s love for rock music, particularly the music of Aerosmith​. This performance is remembered as a standout moment of the night, earning both artists a well-deserved standing ovation​.

The ACM Awards event was notable for more than just this performance; Underwood was also introduced by Bethany Hamilton, the surfer who inspired the film “Soul Surfer,” in which Underwood stars. This connection to the film added another layer of excitement to her appearance at the awards show​.

This dynamic collaboration between Carrie Underwood and Steven Tyler not only showcased their individual talents but also highlighted the seamless blending of country and rock genres, creating a memorable highlight in ACM history.