Echarle huevos is a very common Spanish idiom that literally translates to "to throw eggs at it." However, its true meaning is closer to "to have guts" or "to be brave."
In the context of the song, the line "Y en esta vida siempre hay que echarle huevos" means "And in this life, you always have to be brave." It's a powerful and colloquial expression that emphasizes the need for courage and resilience in facing life's challenges, reflecting the character's journey through difficult times.
Dudi's "Rockstar" is a super fun, rebellious track all about a young guy who dreams of being a rockstar, living a wild life, and getting all the attention. He wants to be the kind of guy who has "tenerlas todas locas" [all the girls crazy] and doesn't care if people "me miren mal por decirles un hola" [look at me badly for saying hello to them]. He's even been seen "robando y no va pa'l instituto" [stealing and not going to school], which definitely paints a picture of a bad boy!
But it's not all just about the wild life. The song also hints at a deeper side. He's grown up, "El niño se ha hecho mayor" [The boy has grown up], and he's been through some things, like being seen "borracho y solo sin ti" [drunk and alone without you] in Madrid. There's a sense of longing and remembering home, as he "Lancé un beso para el cielo después del concierto" [threw a kiss to the sky after the concert] and has tattoos that remind him of his family. He's even trying to change, having "dejado la droga por tener más ambición" [left drugs for more ambition]. It's a cool mix of wanting to be a rockstar and dealing with real life.