The purchase, estimated at $325 million, includes royalty streams for songs by artists like Tech N9ne, George Jones and Trey Songz, among others.
Under the deal, Marcus Allen and Brandon McEachern join Live Nation Urban in executive roles.
The deal includes a joint venture allowing Shelton to continue to earn money from his music post-sale.
The offer arrived just two weeks before Twitter’s lawsuit seeking to force Musk to go through with the acquisition was scheduled to go to trial.