Написать письмо. на. английском. языке. про. мою. любимую. группу

Dear penfriend,
Thanks a lot for your letter.I was glad to receive them.In your letter you asked me about groups i like listening.I am trying to answer your question . 
My favourite group is Big Time Rush.It is pop group which consist of four teenagers . also I like to see film on TV with them.It is all I want tell you. 
I think I answered your question. 
Goodbye.
Best wishes,
Vasya