“dear @badgalriri, pardon my inane self indulgence. let’s have a drink someday (on me),” Sheen, 51, captioned a May 2014 photo of Rihanna sporting a pink wig.
His photo choice served as a reminder of the pair’s 2014 social media argument, in which Sheen insulted the 28-year-old’s pink hair.
Their Twitter beef first started when Sheen wrote online that the pop star refused to say hello to him and his then-fiancée, Brett Rossi, while they all dined at the same restaurant, according to TMZ.
“She abandoned common courtesy and common sense!” Sheen also said about Rihanna during his WWHL appearance.