Rihanna alleged Thursday what many Knicks fans already suspected about J.R. Smith and his playoff woes.

In a comment on Instagram, the singer wrote that Smith is struggling because “his a** be hungover from clubbing every night during playoffs.” Smith has shot just 28.6 percent from the field since Game 5 of the first round series against the Celtics. The Knicks are down 3-1 and facing elimination heading into Game 5 of the Eastern Conference semifinals vs. the Pacers.

Before being suspended for elbowing Celtics guard Jason Terry in Game 3 of the first round, Smith was excellent, shooting 48 percent, including 4-of-9 from 3-point range. Last week, Rihanna and Smith were pictured partying at Greenhouse, a club in Manhattan.

The two were rumored to be dating last year. Rihanna appeared to be replying to someone commenting on one of her photos when she outed Smith’s hard-partying exploits.

– Reported by the New York Post