President Obama Boosts Al Green's Sales Almost 500 Percent Obama's singing of 'Let's Stay Together' at Apollo Theater last week upped sales of iconic 1972 hit. According to Billboard magazine, the viral video of the president singing the first line of the #1 hit from 1972 boosted sales of the song by 490 percent. In fact, the tune had its best week since SoundScan began tracking digital sales in 2003, with 16,000 downloads. The YouTube video of the impromptu recital has been viewed more than 4 million times. It was likely the second surprise this week for Green, who was present at the Apollo event where Obama acknowledged the soul singer's presence in the room from the stage. President Obama Boosts Al Green's Sales Almost 500 Percent - Music, Celebrity, Artist News | MTV There he goes again, there's nothing he can't do.