The boy band will also be presenting during the show.
The 25-year-old pop star may have said 'thank u, next' to performing, but she's still 'so f**kin' grateful' for her GRAMMY.
The singer is also making her GRAMMY performance debut as she vies for the Best Pop Solo Performance and Best Pop Vocal Album.
The singer makes a bold statement with a jacket emblazoned with President Donald Trump's name at the GRAMMY Awards.
Brandi Carlile is already a big winner at the 2019 GRAMMYs.
Music's biggest stars shine at the 61st GRAMMY Awards in Los Angeles.
The late singer was posthumously nominated for Best Record Performance at Sunday's ceremony.
The 32-year-old singer shares the Best Original Music award with Bradley Cooper and Lukas Nelson.
The 38-year-old singer is starting off GRAMMYs day on a relaxing note.
The director and star of ‘A Star Is Born’ is in London for the British Academy’s film awards while Lady Gaga is at the GRAMMYs.
Here's when the show will air, how to watch and everyone who is performing during this year's GRAMMY Awards.
Check out more images of the couple's night out!
Dolly Parton and Katy Perry will share the stage alongside some other country crooners!
The duo arrived to the event looking straight out of the runway.
