Social media users are gushing over footage of Naturi Naughton singing Happy Birthday to her on-screen 'Power' son, Michael Rainey Jr.RELATED: What Happened? Michael Rainey Jr. & Gianni Paolo React To 'Power Book II: Ghost' Co-Star Alix Lapri's Arrest In GeorgiaMore On The Footage Of Naturi Naughton Singing Happy Birthday To Michael Rainey Jr.Michael Rainey Jr. celebrated his 25th birthday on Monday, September 22. In commemoration of the occasion, he apparently held an "intimate celebration" titled "Michael Turns 25.. Season 25, Episode 1," apparently sponsored by Fenty Skin and STK.