Alardear means 'to boast' or 'to show off'. It's a powerful verb that perfectly sets the stage for this dramatic song.
"Yo También" is a musical showdown between two men arguing over who was the better lover. The song kicks off with the challenging line, "¿Quién eres tú? Para alardear y presumir..." (Who are you? To boast and show off...), immediately pulling you into their passionate and competitive story.
This song is a full-on musical fight! Two of the biggest names in Latin music, Romeo Santos and Marc Anthony, go head-to-head, arguing over who was the better lover to the same woman. The whole song is basically them asking each other, "¿Quién eres tú?" [Who are you?] to challenge the other's right to even speak about her. It's a classic case of two ex-boyfriends comparing notes, and each one is convinced he was the one she truly loved.
They try to one-up each other with increasingly dramatic claims. One says he offered her a love like "Romeo y Julieta" [Romeo and Juliet], while the other insists he was her "éxtasis intenso de placer" [intense ecstasy of pleasure]. The competition gets personal when one singer makes the bold claim, "A ti te quiso a mí me amó" [She liked you, but she loved me]. They both insist their love was more than just physical, that she was their "todo" [everything], but they don't shy away from boasting about their skills as lovers. It's a bachata soap opera packed into one amazing duet.