They say there’s a holiday for everything these days. ‘International Sibling Day’, ‘International Unicorn Day’ – and who can forget ‘Sausage Week’? There’s nothing a marketing exec loves more than a random and unnecessary day of celebration to get trending on Twitter. Even your friendly neighbourhood stoner has one!

Today is 4/20, a day of showering praise upon the little green plant that’s to blame for many regrettable late night Chinese takeaways, Camden Market, and the straight-to-video Snoop Dogg and Wiz Khalifa movie Mac + Devin Go To High School.

Why is April 20 so special to stoners? Legend has it that in the early 1970s a group of Californian high schoolers called the ‘Waldos’ would go searching for a cannabis plant by a statue of the chemist Louis Pasteur at 4.20pm week after week. They smoked so much pot that 4:20 just became a code word for cannabis. When the Waldos befriended The Grateful Dead, the 4/20 story spread, and a beautiful holiday on the 20th day of the fourth month of the year was born.

Whether you’re planning to head to Hyde Park to join the festivities or organising a last minute trip to Amsterdam, a solid ‘weed tunes’ playlist is essential. Pay proper homage to the Waldos with this collection of the greatest ever songs about smoking weed.

1. ‘Because I Got High’ – Afroman

In this great ode to stoner laziness, Afroman sings “If I don’t sell one copy, I’ll know why/‘Cause I’m high”. Ironically, he sold more than one million copies of the single in the US alone, and went platinum in eight countries.