The 16-year-old served as a composer on the track, which features vocals by Nina Nesbitt.
Deacon Phillippe is a musician in the making! The 16-year-old son of Reese Witherspoon and Ryan Phillippe shared his first song, "Long Run," which features vocals by Nina Nesbitt, on Friday.
Deacon served as a composer on the project and fans quickly expressed confusion that he wasn't singing on the track despite having prominent placement in the music art.
"Omg I love your voice," singer Nesbitt quipped in the comments of his Instagram post.
"@ninanesbitt ??it’s beautiful isn’t it," Deacon jokingly replied.
He later further clarified, "Guys this is not me singing??"
And when one fan asked, "@deaconphillippe then what did you do? The beats?" he liked the comment.
The romantic dance track features the catchy chorus, "Won't you just stay for a minute, won't you just be for a minute. I just need to know that you're in it for the long run."
Proud dad, Phillippe, tweeted ahead of the song's release on Thursday, writing, "My son’s debut single as a producer #LongRun is about to be played for the first time on @sirius on BPM channel. Right now!!!!!!"
And Witherspoon later posted about the single on her Instagram account, writing, "New Song of the Summer! #LongRun So proud of my son @deaconphillippe... his first single with the incredibly talented @ninanesbitt is out now! ? It’s the perfect summer bop with a sick beat and dope drops (is that what the kids say ??!)."
Famed manager Scooter Braun, who works with Justin Bieber, Ariana Grande, Demi Lovato and more, commented on the song release on Instagram, writing, "Congrats!!"
For more from Deacon, watch the clip below:
RELATED CONTENT: