'F' Debut is the 1st album by Fiona Sit, and was released on April 8, 2004. It became a best-seller in Hong Kong, being certified gold for sales in excess of 25,000 copies. The album contained the hit ballad "XBF" (short for ex-boyfriend) and another hit "Keanu Reeves Reply".

The tracks on the album are:

1. "XBF"  4:12
2. " " (Madonna's kiss)  2:56
3. " " (Keanu Reeves Reply)  4:02
4. " " (God is Male)  3:13
5. " " (Out!)  3:37
6. " " (Smart)  3:36
7. " " (The Ugly Duckling)  4:13
8. " " (Hibernate)  4:09
9. " " (Cinemamania)  4:23
10. "XBF" (Soft Mix)  4:03
11. "Vie Ya" (Hibernate English Version)  4:08