Isaiah Rivera (born March 20, 1997), professionally known as Wifisfuneral, is an American rapper from Palm Beach, Florida. He is best known for his breakthrough mixtapes, "Black Heart Revenge" and "When Hell Falls", which have garnered over a million plays on SoundCloud.

Isaiah Rivera was born on March 20, 1997 in the Bronx, New York and is of Puerto Rican descent. He later moved to Palm Beach, Florida as a toddler with his mother and father. His father was a lyricist that ran around with his rap group IC Square in the early 90s. Rivera began to craft rhymes at the early age of seven.

Rivera sold prescription drugs in high school, he dropped out his junior year.

XXL magazine named him as a Florida artist to watch in October 2016. Rivera first gained recognition in the hip hop community with his 2014 project Light Skinned Trick Daddy, which uploaded to SoundCloud.

In 2016, Wifisfuneral released Black Heart Revenge, which contained the single Grim.

In January 2017, he put out his new project When Hell Falls, which was spearheaded by the singles “Antisocial Club,” and “Hell on Earth,” and featured guest appearances from Kembe X, Yung Bans and Danny Towers.

Rivera signed to Interscope Records and Alamo Records in March 2017 after performing at SXSW.