Celebrities Pay Tributebr to John Singleton 51-year-old John Singleton passed away on April 29br after suffering a stroke 13 days prior. Singleton was best known forbr his film ‘Boyz n the Hood’ asbr well as for his constant push forbr inclusion in the film industry. Celebrities took to socialbr media to mourn his passing andbr share their praise for his legacy. Snoop Dogg,br via statement Samuel L.