Latin singer Jenni Rivera and six others were killed in a plane crash, the U.S. National Transportation Safety Board confirmed. The NTSB said it was dispatching help to the crash site in northern Mexico to assist in the investigation of the accident.

"On Dec. 9, 2012 at about 3:30 a.m. local time, the airplane crashed about 70 miles south of Monterrey, Mexico, due to unknown circumstances while en route to Mexico City, Mexico. All 7 persons on board were fatally injured including Latin singer Jenni Rivera," the NTSB statement read.

There was an outpouring of disbelief and grief from fans of the 43-year-old Mexican-American entertainer, who popularized the banda and nortena styles of music. See what celebs like J.Lo, Pitbull, and even Travis Barker -- who survived a deadly plane crash himself -- said about her untimely passing.

Jennifer Lopez ‏@JLo
So sad!! Praying for Jenni Rivera's children and family and the passengers families. Que dios los bendigan!! Descansen en paz...

Pitbull @Pitbull
I highly respected #JenniRivera 4 being a gr8 performer but more then tht being real & gr8 example 4 us all que dios la bendiga &may she RIP

Travis Barker ‏@travisbarker
R.I.P. Jenni Rivera . Prayers and condolences to her friends, fans & family. #f--kplanes

Eva Longoria ‏@EvaLongoria
My heart breaks for the loss of Jenni Rivera & everyone on the plane. My prayers go out to her family. We lost a legend today.

Mario Lopez ‏@MarioLopezExtra
Spent some time with Jenni Rivera recently. What an amazing lady... Cool, smart, funny & talented. Such a travesty... God Bless her family

Gloria Estefan ‏@GloriaEstefan
Our deepest sympathy to the family & fans of @jennirivera & those that accompanied her on what was to be her last voyage. Rest in peace…  

Holly Robinson Peete ‏@hollyrpeete
...Heartbreaking about Jenni Rivera...reading about her life journey, struggles and massive successes. RIP to a powerhouse entrepreneur...

Ellen DeGeneres ‏@TheEllenShow
I know a lot of my followers have been saddened by the news about Jenni Rivera. Sending love to her family, and her fans.

Adam Irigoyen ‏@adamirigoyen
My heart goes out to Jenni Rivera and her family. #Latinosstandup

Kat DeLuna ‏@KatDeLuna
Rest in peace @Jennirivera You will be missed. My condolences go out to the Rivera family.

Share your thoughts in the comments below.