Sleepy Brown) 2010 Janelle Monae - Tightrope (feat. Big Boi) Big Boi - Be Still (feat. Janelle Monae) The duo's musical hook-ups surfaced on OutKast's Idlewild , Janelle's The ArchAndroid , and Big Boi's brand new Sir Lucious Left Foot . Their individual sounds are absolutely monstrous and it's just another