The song "Let Me Know" by US5 is about a person who is deeply infatuated with someone they have just met. This newfound love interest has made such a strong impression on them that they feel like they have never felt this way before. The lyrics express the intensity of their emotions and their desire to be with this person. The song begins with one of the group members, Izzy, describing how the presence of this person makes them go crazy and they've never felt like this before. Richie then joins in, wondering why he feels this way every time he sees their face and expressing his desire to love them all night long. The pre-chorus asks the person if they want to be with the singer and urges them to let them know their true feelings. The chorus repeats the request for the person to let the singer know if they want to go on a romantic journey together. They suggest taking it slow and showing their willingness to be with them by coming with them that night. Chris adds to the lyrics by saying that the person's smile is angelic and that he wants to love them all night long. Jay follows, stating that whenever he hears the person's voice, it makes him want to love them even more and hold them all night. The pre-chorus and chorus are repeated again, emphasizing the longing for the person to express their feelings and the singer's eagerness to be with them. The C-part of the song reinforces the idea that the person needs the singer and wants them. They encourage the person to take a chance and experience what it's like to be with them. The outro of the song repeats the plea for the person to let the singer know their true feelings and to call them if they want to go on this journey together. Overall, "Let Me Know" is a song about unrequited love and the singer's desperate desire for the person they are infatuated with to let them know if they feel the same way.
