"Love your heart, bang, bang, bang" is a lyric in the song "Alas" sung by the famous female singer Rollin Wang. "Alas" is a South American hiphop dance. Among them, the rhythm of flamenco guitar and hiphop, combined with the melody of Rollin Wang, makes the whole song rich and exaggerated. The lyrics are very creative and boldly express the complicated feelings of joy and contradiction of the girl in secret love. The word "alas" runs through and is the biggest memory point of the whole song. An interjection contains multiple layers of complex emotions to be expressed. Rollin Wang's rap is just right in the song. There are not many paragraphs, but people who have heard them will be impressed. "Oh, my God" is well said. The lyrics use some simple words that are often said at ordinary times, which makes people feel comfortable and reflects Rollin Wang's musical talent.