Bilingual Bob?

I was in the local Barnes & Nobles and saw the back of this book:

Michel Thomas Speak Italian for Beginners: 10-CD Beginner's Program (Michel Thomas Speak...) [ABRIDGED] (Audio CD)

which said:

Celebrities who have learned with the Michel Thomas? method:

* Princess Grace of Monaco
* Barbra Streisand
* Woody Allen
* Warren Beatty
* Bob Dylan
* Emma Thompson . . . and many more

Here's the amazon listing:
http://www.amazon.com/Michel-Thomas-Speak-Italian-Beginners/dp/0071480072/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1211978498&sr=8-1

So what foreign language(s) does Bob know?
.