Cardi B and Post Malone marked major breakthroughs in the last year, but the rap stars won’t compete for best new artist at the 2019 Grammy Awards.

Cardi B, who earned two nominations at this year’s Grammys held in February, was not eligible for nomination because of her previous nominations. The Grammys, which has adjusted the rules of best new artist over the years to keep up with the changing musical landscape, state that “any artist with a previous Grammy nomination as a performer” would not qualify. If Cardi B had not released an album around the time she earned her first pair of nominations for “Bodak Yellow,” she could have qualified. But because she had enough music to be eligible for best new artist at the 2018 show and earned prior nominations, she was not qualified to enter the category.

A person familiar with the situation, who spoke on the condition of anonymity because they were not allowed to publicly discuss the topic, said Cardi B was submitted for best new artist at this year’s show, though she didn’t earn a nomination. The award went to Alessia Cara, while nominees included SZA, Khalid, Lil Uzi Vert, and Julia Michaels.

Post Malone was also submitted for best new artist at this year’s show but didn’t garner a nomination. Because he had never earned a Grammy nomination, he met the criteria to be a best new artist contender for the upcoming awards show, but at a Grammy nominations meeting held this month his inclusion in the category was met with debate, the person said. Malone lost in a vote by music industry players — ranging from executives to producers to publicists — and will not compete for the coveted honor. Some felt because the hitmaker had success with his 2016 debut, Stoney, as well as the hit songs “Congratulations” and “White Iverson” — released in 2015 — he had already past new artist status.

A representative for Post Malone declined comment Wednesday. A representative for Cardi B did not immediately respond to a request for comment.

The first round of voting for the 2019 Grammy nominations begins Oct. 17. Nominees will be announced Dec. 5 and best new artist will include eight contenders instead of five for the first time. The show airs live on Feb. 10.

The best new artist rules state that an artist can be submitted three times and is eligible so long as they have only released three albums or 30 tracks. Some artists, for example, earned nominations with second and third albums since those records marked their major breakthroughs as rising acts on the music scene.

Malone was also a hot topic at the Grammys meeting for his recent album, Beerbongs & Bentleys, which was kicked out of the rap category and pushed into the pop genre, the source said. Best rap album nominees must contain 51 percent or more of rap music, and the Grammys rap committee felt Beerbongs leaned more toward the pop genre with its the production, sound, and melodies. The diverse album also includes singing, elements of R&B and rock and veers outside of rap with songs like the guitar-tinged “Stay.” The person said the larger Grammys committee listened to the entire 18-track album — which includes the #1 hits “Rockstar” and “Psycho” as well as “Better Now,” currently #4 on Billboard’s Hot 100 chart — and voted that it would compete in pop instead of rap.

The best rap album category is expected to feature stiff competition since the genre has heavily dominated the pop charts in the last year, with albums by Drake, Eminem, XXXTentacion, Cardi B, Travis Scott, Lil Wayne, J. Cole, and Migos being proposed as possible nominees.

It was not clear where Malone’s singles would land — they could appear in rap or pop, or both. Over the years more and more musicians have had songs from a single album appear in different genre categories. Beyonce’s Lemonade album had tracks compete in rock, pop, R&B and rap categories, while Justin Timberlake and Rihanna’s nominations have ranged over the years from dance to pop to R&B to rap.