Wilbarston-based Youth Brass 2000 completed a hat-trick of contest wins including an appearance at the prestigious Butlins Brass Band contest in Skegness.
The band won the competition in Skegness and followed up that victory with a win at the British Open Youth Brass Band Contest in Preston, Lancashire, before taking the top prize at the National Entertainment Champions competition in Blackpool.
Don Collins, band chairman, said: “Two in three major national contests is unprecedented - and all in just a five-week period is amazing.
“It is a result of incredible hard work from this very talented young group of musicians.
“I must also thank the amazing support of the committee and parents who have found themselves flat out in preparation for such a busy schedule.”
Musical director Chris Jeans said he had dreamt of achieving “The Grand Slam” for years.
Mr Collins added: “Finally, thanks to his amazing vision and meticulous preparation, it has happened.”
Youth Brass 2000 are now in rehearsal for the next challenge, to defend their title of National Champion Youth Band of Great Britain, a title they won in 2014 and 2015.
The finals of that event will be held at the Royal Northern College of Music in Manchester.
At the end of April they travel to Lille, in France, to represent England in the European Brass Band Championships.
This summer, Youth Brass 2000 will jet to Europe again on their annual tour, this year to Lake Garda in Italy.
And in November the band is due to appear twice at the prestigious Sage Theatre in Gateshead.
The band will reprise their Blackpool performance at the Cube Theatre in Corby on Sunday, March 20, and are promising an added Scottish twist.
The band rehearse at the village hall in Wilbarston and are always happy to welcome newcomers.
For more information about Youth Brass 2000, contact the band chairman Don Collins on 07860 525352.
Alternatively, visit their website at www.youthbrass2000.com.