This will be her third appearance, following an Emmy Award nominated "Shy Ronnie" short in 2010.
While it's unclear if the "Where Have You Been?" singer is lined up to reprise the "Shy Ronnie " short, she will at least perform in support of her 2011 album "Talk That Talk."
New York Giants quarterback Eli Manning will also host.
In related news, sources say Rihanna may be interested in rising rapper A$AP Rocky.
Reportedly spending time together at Coachella over the weekend, sources with The Sun say "'Rihanna took a real shine to A$AP. She couldn't take her eyes off him. She hung around after his set to chat to him and seemed to be a big fan. They were getting stuck into champagne with mates before moving on to rum ,- they even asked a lackey to get ginger beer as a mixer for it."
As widely reported, Rihanna turned out Coachella with a surprise performance and partied hard with pal Katy Perry.
Rihanna returns to SNL Saturday, May 5.