The singer got inked on his forearm and it's of an anchor. It's a tribute to his fans, who he refers to as his "little sailors."
Lucky for us, Sam's whole tat moment was video taped for us to see. It definitely looks like it didn't go down without any pain.
The "Stay With Me" singer only recently gave his fans the "little sailors" name, tweeting the news back in December. The fan army name is actually a reference to his song "Little Sailor," which he wrote when he first moved to London and was frustrated that managers about managers' broken promises.
"It was a song to myself to say, 'Hold out for one more year, and if you're still being let down and you're still being promised the world and nothing's happening, life's too short,' he told The Fadar in June of 2014. "Go and travel and be a 20-year-old boy."
Watch Sam get his tattoo, below. Do you think it's cool?