Watch: Channing Tatum Celebrates Girlfriend Inka Williams' Birthday With Rare MessageChanning Tatum is stepping up for his girlfriend's birthday. The Magic Mike star commemorated Inka Williams' 26th birthday by posting rare photos and videos of them traveling together. "Happiest day of birth to my RIDER!" he captioned a video of Inka riding on the back of his motorcycle at Burning Man shared on his Instagram Stories Sept. 9. "Love you so.