By Jessica Goodman
Updated July 23, 2015 at 12:05 PM EDT
Kevin Winter/Getty Images

Miranda Lambert joined her friend and country breakout star Ashley Monroe onstage in a small Nashville club on Wednesday, two days after announcing her split from Blake Shelton.

Monroe was performing at the venue the Basement as a preview to her upcoming album, The Blade, due out Friday. She brought Lambert up on stage to sing her track, “Heart Like Mine,” during her encore performance. The two wrote the song for Lambert’s Revolution album, and Lambert also appears on The Blade‘s title track.

Lambert and Shelton announced their divorce after four years of marriage on Monday. Lambert’s next solo show will be July 28 in Nashville.

See some fan-shot footage of her performance with Monroe.

Ashley Monroe hits her stride on ‘The Blade’

Blake Shelton and Miranda Lambert file for divorce