"Suavemente" is a song recorded and composed by Puerto Rican artist Elvis Crespo on his first solo album, Suavemente, which followed his departure from Grupo Manía. Released as the lead single, "Suavemente" reached number one on the Billboard Hot Latin Tracks on May 16, 1998, and remained atop the chart for six weeks. Crespo re-recorded it with Spanglish lyrics. The song also hit the Billboard Hot 100 as well as received a Premios Lo Nuestro award and two Latin Billboard Music Awards the following year. "Suavemente" was the tenth best-performing Latin single of 1998. The song has been covered by several artists, some of whom also charted.

"One (Always Hardcore)" is a song by German Techno musical group Scooter. It was released in December 2004 as the third single from their 2004 album Mind the Gap. The radio edit is a remix of the song's album version, featuring more elaborate instrumental bridges.