Japan is an island that starts with J.
i j
Besides the letter J itself, another letter that starts with J is junk mail.
J. Jill
Keira Knightley
One Celebrity that's name starts with the letter "J" is Justin Timberlake.
Jeniffer Lopez
joe Jonas
Jamie Lynn Spears Jennifer Lopez
There are many. You need to be more specific. Some include: Jay Leno Jennifer Lopez Jessica Simpson
J lo?
Jelena Jankovic (SRB)
Cascada
usher
yanni
jay-lo
No there is no Mario character that starts with a J