YDB aka GWTSCTYD(this could be a tricky one)

For interest, here are the original twenty saet by Sooz, with answers suppied so far. Still a good few to go!

1. CPAABW
2. BA
3. TLWCTC
4. MB
5. LRM
6. AWSCAAPC A white sports coat and a pink carnation
7. BEHM
8. IBTWYPDB Itsie bitsie teensy weenie yellow polka dot bikini
9. LWB
10.BGBE
11.LTP
12.LBDD
13.WGL
14.BBB Blue Blood Blues(probably not the intended answer, but it fits!)
15.SWAYR
16.WH
17.TPPT
18.ABG
19.TWCOD The White cliffs of Dover
20.STATG