"Agua" (English: "Water") is a song by Puerto Rican rapper Daddy Yankee featuring Puerto Rican singer Rauw Alejandro on vocals and American musician and producer Nile Rodgers on guitar, being their first collaboration with each other. It was released on March 24, 2022 simultaneously with Yankee's eighth studio album, Legendaddy, among various other singles from the record. It was accompanied by a music video directed by filmmaker Marlon Peña. It was written by the three said musicans, David "Raey" Fajardo, singer Rafael "Reggi El Auténtico" Aponte, Raúl "Rey Santana" Treviño, Gary Walker, producer Scott Summers, producer Emmanuel Anene and production duo Play-N-Skillz members Juan Salinas and Oscar Salinas. It was also produced by Yankee, Play-N-Skillz and Scott Summers.
It is a dance, disco and pop song with a trap segment, funk electric guitar riffs and love lyrics. Daddy Yankee wanted to record a 1980s-inspired track and enlisted Rauw Alejandro due to the success of his single "Todo de Ti" (2021) and Nile Rodgers because of his involvement as producer and guitarist of several hits from that era. It has been praised by music critics as one of the album's best tracks—referred to as surprising, refreshing, alluring, irresistible and exciting—and was nominated for Song of the Year at the 23rd Latin Grammy Awards. Commercially, it reached number 189 on Billboard's Global Excl. US chart, as well as number 12 in Panama, number 21 on the US Hot Latin Songs, number 28 on Billboard's Mexico Español Airplay chart and number 52 in Spain.