He told MTV: "I'm really excited. I did two songs on her album, and one of the songs I did, I brought in Travis Barker.
"It's got this rock feel which is out of the box, out of my norm, and I think it's out of her norm as well. We had a great time making this record."
Rodney - who has previously worked with artists including Michael Jackson, Beyonce Knowles and Spice Girls - also told how Britney had a lot of input on the tracks, saying she was "very hands-on" and is "a top-notch veteran pro at this now."
Britney has herself previously described the album as "moody, edgy pop with a lot of energy."
Travis has most recently been in the studio working with Blink-182 on their comeback album, their first since their self titled fifth album in 2003.
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