airport express to stream music in an existing network?

ive currently got a wireless network set up using my Shaw Cable modem, a d link wireless router and my macbook.

i just bought a set of audio engine 5 powered speakers, and these have a specific power socket on the rear for an airport express. can i add the airport express to the rear of the speakers, but still use my existing network to connect to the internet but also send music to the speakers at the same time?

basically i want to listen to internet radio, and wirelessly connect to my speakers.

will this work?
thanks

yes it will work

Sure it'll work. Be sure to set up the APX to run as in bridge mode to your existing network and it'll be fine.