Spanish speakers write their letters the same way that we do. The only difference is the way they sound. I will show you the pronunciation of the letters.
A=ah
B=bay Sometimes called bay grande
C=say
Ch=chay No longer a separate letter, but used in the song.
D=day
E=ay
F=f-ay
G=hay
H=ah- chay
I=ee
J=ho- tah
K=kah
L=L.A.
LL=ay- yay No longer a separate letter, but used in the song.
M=em ay
N=N.A
Ñ=N- ney
O=oh
P=pay
Q=coo
R=airay
RR=air- ray
S=essay
T=tay
U=oo
V=bay Sometimes called bay-chica
W=doh bley bay
X=ay- keys
Y=ee gree ay gah
Z=say- tah