Bizarre moment shirtless rapper Lil Pump performs for his grandma at her 90th birthday goes viral - with fans left in hysterics at her deadpan expression and declaring: 'She HATES it!'

Fans have been left in hysterics after Lil Pump serenaded his grandma with his explicit track Gucci Gang on Monday. Giving the performance his all, Lil Pump performed shirtless as he danced around his grandma shirtless as he sang: 'Gucci gang Gucci Gang'. Fans were left in hysterics as Lil Pump serenaded his grandma with explicit rap at her 90th birthday celebrations on Monday The rapper, 24, offered his grandma a unique gift as he sang at her 90th birthday while she sat looking decidedly unimpressed He captioned the post: 'I SONG SANG GUCCI FOR MY FAVORITE GRANDMA happy 90th birthday @grandmapump90 'Happy birthday to my dad Fabio te amo'. Giving the performance his all, Lil Pump performed shirtless as he danced around his grandma shirtless as he sang: 'Gucci gang Gucci Gang' Later in another video, Lil Pump's grandma seemed to relent as she got up to dance with her grandson in the sweet clip Fans were left in hysterics in the comments as they all said the same thing following his shocking performance In another sweet birthday post, Lil Pump paid tribute to the 90-year-old as they posed together in matching red jumpers He wrote: 'HAPPY BIRTHDAY GRANDMA PUMP 90 YEARS OLD ME & MY GRANDMA TAKE MEDS!