Mia Jaye, Dolph's girlfriend and the mother of his two children posted a never-before-seen tribute video of Dolph to celebrate his "heavenly birthday."

There was also some music dropped to celebrate Dolph ... his team at Paper Route Empire released a new track called "Hall Of Fame" Wednesday to honor the rapper. On the track -- produced by his longtime collaborator Bandplay -- Dolph flexes his hood status.

Dolph became an incredibly prolific rapper -- especially in Memphis -- over the last few years, having racked up dozens of full-length releases and collaborations with the likes of Gucci Mane, Megan Thee Stallion, Juicy J, and his PRE stable of artists.