Katy Perry penned this song about love being the best Christmas gift for a commercial promoting H&M's #HappyAndMerry seasonal campaign. The singer also features in the ad playing a festive fairy sprinkling seasonal joy alongside a cast of gingerbread men and elves. The spot was directed by Jonas Akerlund.
The gospel-infused dance track was produced by English DJ and deep house producer Duke Dumont. His first two singles, "Need U (100%)" and "I Got U" both topped the UK chart.
Angus Young created the distinctive opening guitar part for "Thuderstruck" by playing with all the strings taped up, except the B. He learned the studio trick from his older brother George Young, who was the rhythm guitarist for The Easybeats.