What's the difference between Ai Letuan and F.I.R? Great gods, help!

Ai Letuan was originally composed by Xu Li and Wang Chao, and his debut album Tianya became a hit. Later, due to disputes with brokerage companies and Xu Li's personal academic pursuit, it was dissolved. The new lead singer is Lin Hu, and has released a new album "Let Go". Chinese name: Lin Hu (lead singer of Ai Letuan) English name: Ering Native place: Suzhou Birthday:1July 25th, 985 Height: 168cm Weight: 49kg Blood type: O constellation: Leo family: Mom and Dad wish: to make family life happier. My favorite person: mom and dad, ideal partner: filial piety. Rose) favorite singer: favorite actor: Chen's favorite color: gold, orange and purple. Favorite food: Dad's fried steak. Favorite drink: orange juice. Favorite animal: sled dog's favorite fruit: watermelon. Mango's favorite book: February River's favorite thing to do in the Qing Dynasty series: playing computer in a daze, favorite season: favorite country in autumn: favorite place in China: the most embarrassing thing in Tibet: I used to regard the company as the most wanted gift of a liar; favorite movie type of all the top musical instruments in the world; favorite music type of horror movies: metal's own advantages: frankness, frankness, attention to its own shortcomings: wisdom and stupidity, "Mania" won numerous awards: His "Rhythm China" was designated as the anthem of the 3rd National Games by the State Sports General Administration, and won the Excellent Singing Award of the 5th Jiangsu Music and Dance Art Festival. Champion of the 3rd Suzhou Young Singers Competition, and the 1st Suzhou Latin Dance Competition. Experience: Vocal singer of Wuxi Song and Dance Troupe, joined Ai Letuan in 2006. Chinese Name: Wang Chao (guitarist, producer in Ai Letuan) Age: 70. Age and height: 178CM constellation: Taurus's favorite color: red's favorite singer: Bono, Robin Williams's favorite movie: favorite book in America: half is flame, Half is the favorite lifestyle of seawater: quiet personal hobby: model airplane Chinese name: Xu Li (former lead singer of Ai Letuan) Age: 1985 Birth height: 165CM Education: Undergraduate favorite color: pink favorite singer: CoCo Lee favorite actor: Maggie Cheung favorite writer: Zhang Xiaoxian favorite movie:/kloc-0.