"Sekai wa Sore o Ai to Yobundaze" (世界はそれを愛と呼ぶんだぜ lit. That's What the World Calls Love) is the Japanese rock band Sambomaster's fifth single.
It was the Japanese drama Densha Otoko's ending song, it was featured on the Hataraki Man soundtrack and was covered in the INiS rhythm video game Moero! Nekketsu Rhythm Damashii Osu! Tatakae! Ouendan 2 as the finale song. It was also covered in Konami's Bemani series, Drummania and Guitarfreaks. In 2007, Japanese singer 'bird' released a remix album, "BIRDSONG EP -cover BESTS for the party-" featuring a jazz-hiphop remix of "Sekai wa Sore o Ai to Yobundaze".
It sold 126,885 units, making it the #76 single on the Oricon top 100 for 2005.