Dave Grohl has written and performed a song custom-made for one of his biggest fans and fiercest musical competitors - a 10-year-old drummer named Nandi Bushell.
The Foo Fighters frontman and the young British muso first became virtually acquainted last month when Bushell challenged Grohl to a drum-off, playing his band's song 'Everlong' in a YouTube clip that has since been viewed nearly 2 million times.
Grohl responded with an 'Everlong' performance of his own, telling Bushell: "You're an incredible drummer. I'm really flattered that you picked some of my songs to do for your videos."
The battle continued when Grohl issued his own challenged to Bushell, asking her to match him in playing the drum part from Them Crooked Vultures' 'Dead End Friends', which she did without missing a beat while dressed exactly the same as the former Nirvana member.
Grohl admitted defeat, but for round two of the drum-off, surprised his opponent with a special song written "off the top of his head" about Bushell, performed with the help of his daughters, whom he calls 'The Grohlettes'.
"I can't believe Mr Grohl wrote a song about me!?! This is so so so #EPIC!!" Bushell tweeted.
"I think its the best song EVER, in the WORLD, EVER!!! Thank you so much Dave. You have raised the stakes to all instruments! I accept your next challenge! Thank you to the whole Grohl family!"