Thomas Rhett has announced his next new single, "Unforgettable." The country star revealed the news on Friday (July 21) and shared a preview of the track.

"Unforgettable" will be available on July 28, Nashville's Tennessean reports; the newspaper also has a clip of the song on its website. An uptempo love song written by Rhett, Jesse Frasure, Ashley Gorley and Shane McAnally, "Unforgettable" contains lyrics such as "I bet right now you’re probably thinking that it’s crazy I remember every detail, but I do / From your blue jeans to your shoes, girl, that night was just like you / Unforgettable."

“It’s a song about reminding the girl that you’re with today, ‘Hey, I remember every single detail of the night we met,’” Rhett says. “I think it’s something girls will find sweet and attractive about someone they like. It’s one of [my wife] Lauren’s favorite songs on the record … which definitely makes me feel better about it.”

Late Thursday night (July 20), Rhett shared a mysterious video on Instagram (readers can watch it above) soundtracked by what may also be part of the melody of "Unforgettable." In the clip, Rhett is spray-painting a red, green and yellow design, though its meaning is unexplained -- perhaps new album artwork.

"Unforgettable" is Rhett's second single from his forthcoming third studio album, which he says will be out this fall. It follows the No. 1 song “Craving You,” a duet with Maren Morris.

Rhett is currently on the road for his Home Team Tour. He and wife Lauren welcomed their adopted daughter Willa Gray home in May, and their first biological child -- also a girl -- is due in August.

Thomas Rhett's Best Live Shots

Unforgettable Thomas Rhett Moments