Jessica, who was left heartbroken after her divorce from Nick Lachey in 2006, decided to release a country album following encouragement from her American football star lover.
A source said: "Tony tells Jessica not to let life pass her by."
The 28-year-old 'Dukes of Hazzard' actress - who starred as hotpant wearing Daisy Duke in the 2005 movie - is also feeling more comfortable with her body since she began dating Tony, also 28, last year.
The source added: "Tony is also the first to boost Jess about her body! Jessica admits she has packed on a few pounds but she doesn't care.
"She is loving life and isn't trying to be Daisy Duke. Besides, if Tony loves the way she looks, who is anyone else to complain?"
Jessica recently revealed she is in love with Tony but isn't sure if she is ready to tie the knot with him just yet.
She said: "We've been together for seven to almost eight months now. I don't really know about wedding bells - I still love him, and I'm still with him, so that's a good sign."
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