Rihanna, Nicki Minaj, Justin Bieber Send Well Wishes to Sean Kingston on Twitter

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Stars Tweet messages of support to the hip-hop star who is in critical condition after a jet ski accident.

Stars are taking to Twitter to send their well wishes to hip-hop star Sean Kingston who is in critical condition after being involved in a jet ski accident in Miami Beach early Sunday evening.

Among those who sent messages:

Nicki Minaj: "My love & prayers are with Sean Kingston & his family."

Scotter Braun: "keeping close updates on lil brother @seankingston ...keep sending him your prayers and positive energy. #getwellsean:

Justin Bieber: "alot of you are asking about @seankingston  - he is doing better but out of respect to his family I will wait for them to comment... I will continue to pray and support my friend. #getwellsean"

Rihanna: "Sean we praying for u baby"

LL Cool J: "I hope and pray that Sean Kingston recovers quickly.... #staystrong"

Kingston, 21, best known for his 2007 hit "Beautiful Girls," was heading west from the MacArthur Causeway and Miami Beach Islands when his personal watercraft collided with the bridge.

He and his female passenger ended up in the water.

A good Samaritan tended to them until Miami Beach Fire Rescue arrived and transported them to Jackson Ryder Trauma Center in Miami around 6 p.m.

In a statement, the singer's spokesperson, Joseph Carozza, said: "Sean Kingston is now stabilized and has moved from the trauma unit to ICU. Sean's family thanks everyone for their prayers and support during this time."