Ah but songwriting is not singing. A person can be a fantastic singer but a crap writer and vice versa.
English is seen as a "proper" degree by employers, and wins you more respect than some of the ****e out there at the moment. It is hard work (to do well), and that is acknowledged by shrewder bosses.
People have always told me that a local "university" offered a degree in mattress sales! Personally, I'm doing a Biology degree, going into my last year in a few weeks and where my course started really broad, covered evolution to cell biology, I've now become much more specialised in molecular genetics. Actually, my final year project involves recreating genes that when mutated cause spinal cord defects like spina bifida and I'm going to be working on live mammalian embryos! So something like that is quite specialised and I've just ended up going down that route. After my GCSEs I could have joined a semi-professional football team but I chose to carry on with my studies fully (something that I regret) but I'm aware that biological science in the near future is going to be dominated by the sort of things I'm doing now, so I've tried to pre-empt this and get my nose in now. Talking about English, I did at at GCSEs last and got 2 As and I really regret not doing it for A level (ended up doing Maths, Bio, Physics and Psychology like a good Asian boy). Actually, we had an all boys top set for English for my GCSEs and it was probably most people's favourite subject as a result. Our teacher was fantastic, 5ft 4 lesbian with short spikey hair but probably the best teacher in the school. And we did Pride and Prejudice and Romeo and Juliet just to name two pieces of literature that we did. I wouldn't say there isn't any future in doing something like English, but with everything, you have to do more and learn more than just what is being taught.