Rihanna posts bikini and marijuana cake photos on Instagram

Rihanna seemed to have a pretty nice couple of days the weekend of April 20. Known as something of a holiday in the cannabis culture, Rihanna started her 4/20 off with photos of a marijuana-themed cake, along with her smoking what looks like a joint. She called the day a "celebration," and thanked her fans for supplying the cake.

The next day, she posted a series of photos of herself wearing a bikini while lounging around in Florida, soaking up the sun. She says the bathing suit, designed by Matthew Zink, is her "favorite bikini of all time," and also posed for photos with a child while relaxing in the sun.

Rihanna returned to the stage April 19 in Tampa, Fla., after canceling shows due to an unknown illness. A rumor spread that the singer was pregnant after she was seen leaving a Los Angeles doctor's office, however that was quickly debunked. Commenting on one of her own photos on Instagram, the singer said she had been sick since her April 11 show in San Diego.

Check out a few of Rihanna's Instagram photos below:

Photo/Video credit: Instagram