Betty Who. Mama Say. #GymJam #lift This entry was posted in lift and tagged australia betty who lift mama say pop on March 21, 2017 by gymjams Betty Who has another hot track leading up to the release of “The Valley’. “Mama Say” is pop perfection with an insanely catchy chorus and hip hop inspiration. If you like it, check out the buy page to get this track, or our stream page to stream from Spotify.