Allá tú is a fantastic idiomatic expression that literally means "over there, you". In conversation, however, it's a sassy way to say "That's on you," "It's your problem," or "Suit yourself."
In the song, Enrique sings "Si decides dejarme... Allá tú si más tarde..." (If you decide to leave me... that's on you if later...). He's defiantly telling his lover that the decision and its future consequences are theirs alone. It's a great colloquial phrase that will make you sound more like a native speaker.
This song is all about a messy, on-again, off-again relationship. Enrique Iglesias describes a love that's constantly "sube y baja" (up and down), but somehow, it just works. One minute, one of them says, "se acabĂł" (it's over), but then a little voice inside says "no," and they stay together. It's that kind of connection that feels impossible to quit, even when it's difficult.
But here's the twist. He's not begging his partner to stay. Instead, he's making a super confident, almost cocky, prediction. He says, "Si decides dejarme / No te voy a suplicar" (If you decide to leave me / I'm not going to beg). He's basically telling her to go ahead and try to leave, because he knows she won't be able to forget him. He warns her, "Aunque corras, te escondas, no puedes escapar" (Even if you run, you hide, you can't escape). It's a bold claim that their love, good or bad, is too real to ever truly leave behind.
Enrique Iglesias shopped his first demos around Madrid under the name Enrique MartĂnez, so that no label would sign him for being Julio Iglesias's son. Fonovisa signed him anyway and flew him to Toronto, where he recorded Enrique Iglesias (1995) in near anonymity. All five of its singles, "Si TĂş Te Vas" and "Experiencia Religiosa" among them, reached number one on Billboard's Latin chart, and the album won the 1997 Grammy for Best Latin Pop Album.
Enrique (1999) moved him onto English-language radio, with "Bailamos" and "Be with You" both topping the Hot 100, and Escape (2001) sold past eight million copies on the back of "Hero". The chart he owns outright is Hot Latin Songs: 27 number ones, more than any other artist, plus the two longest runs at the top in its history, "Bailando" with Descemer Bueno and Gente de Zona at 41 weeks in 2014 and "El PerdĂłn" with Nicky Jam at 30 weeks in 2015. He wound the recording career down on his own terms, calling Final (Vol. 1) in 2021 and Final (Vol. 2) in 2024 his last albums.