Continuing our month-by-month look back over the past year of fantastic record-breaking feats, we return to May 2015 where we saw the US president gain social media fame (above), Southampton soccer player Sadio Mane score the fastest hat-trick, Italy produce the largest Tiramisu and Cally the Wonderdog burst 100 balloons on TV show Britain's Got Talent...

May was also the month that we released footage of the Furthest flight by hoverboard, which arguably became our most talked about story of the year.
Straight from something out of the future, Canadian inventor Catalin Alexandru Duru's propeller-based hoverboard managed to travel a total of 275.9 m (905 ft 2 in) - a distance over twice that of two football pitches.

READ MORE: Watch incredible footage of farthest flight by a hoverboard record set by Canada's Catalin Alexandru Duru

However, the month began on a sad note when iconic record holder Isobel Varley (UK) - the Most tattooed senior citizen (female) - passed away at the age of 78.

Isobel had 93% of her body covered with tattoos and previously spoke about her interest in body modification, explaining: “Originally, I was only ever going to have one – a small bird – but I fell in love with it, and developed an addicition.”
The lady who was born in Yorkshire had her record confirmed during an appearance on Italian TV programme Lo Show dei Record back in April 2009 when “just” 72% of her body was covered in ink (video below).
A TV show called Make You Laugh Out Loud 2 was aired on 13 May, during which a 13 year old rescue cat from Torquay, Devon (UK) proved he has the Loudest purr by a domestic cat.
Merlin's owner Tracy says that he purrs louder than a hairdryer.
Three days later TV viewers witnessed another incredible record-breaking achievement - but this time from the world of sport.
Southampton played Aston Villa in an unforgettable match which saw Southampton's Sadio Mane beat Robbie Fowler’s 21-year-old record for the Fastest hat-trick in the English Premier League, scoring three goals in less than three minutes to secure a 6-1 victory and a Guinness World Records title.
Another sports-related record hit the headlines in April when Match of the Day, and host Gary Lineker, accepted a Guinness World Records certificate for being the Longest running football TV show in history, after running for more than 50 years.
However, the biggest news of the month was President Obama joining Twitter with his new @POTUS account, announcing his arrival with "Hello, Twitter. It's Barack. Really! Six years in, they're finally giving me my own account."
In less than five hours the President of the United States had a record for the Fastest time to reach one million followers on Twitter.
Five months later the politician has nearly five million followers (but his record was broken in June by a reality star/former Olympic athlete...)
Like "Tweeting", the act of taking selfies is another modern fashion that has exploded in the past year or so, with celebs like Dwayne "The Rock" Johnson attempting to achieve the Most self-portrait photographs (selfies) taken in three minutes.
He successfully managed 105 snaps of himself with his fans outside the premiere of his new film San Andreas' in London and secured the title.
He ended the quick-fire selfie challenge with a photo of himself grinning with his new official Guinness World Records certificate and posted the image on Instagram.
With May comes the return of the Eurovision Song Contest which, ahead of its 60th show in Vienna, Austria, became the Longest-running annual TV music competition (international), having been staged every year since 1956 - just once year after the first Guinness World Records book was published.
Guinness World Records adjudicator Eva Norroy said: "Eurovision's achievement was brought to our attention as they were celebrating their anniversary and, when we started to investigate, we realised there is nothing quite like it around the world. Guinness World Records are also celebrating their 60th anniversary this year so both organisations have a lot to celebrate in 2015.
From a global singing competition to a national talent competition, TV's Britain's Got Talent saw one particularly skilled individual break a record live on the show.
A feisty Jack Russell named "Cally the Wonderdog" took to the stage with owner Mitch during the semi-final and in 41.67 seconds snapped up a Guinness World Records title for the Fastest time to burst 100 balloons by a dog - but unfortunately the pooch didn't make it through to the final.
Elsewhere, Associazione Cons.erva, in collaboration with Despar, Latte Blanc, Caffè Toto and Uova Pascolo were busy preparing the Largest Tiramisu ever in Gemona del Friuli, Italy, in an attempt to bring the title back to the desert's birthplace.
Tiramisu is an Italian word which means "pick me up" - but you certainly couldn't lift this 3,015 kg (6,646 lb) record-breaking pudding.

Watch the full 2015 video round up in the player below