Carrie UnderwoodOn her latest album 'Play On,' Carrie Underwood makes her first foray into writing actual love songs. The singer-songwriter says there's a reason we haven't heard her belt out any self-penned 'head-over-heels-can't-live-without-him-I'm-so-happy-I-can-scream' tunes.

"I think it's because I'm a private person anyway, and I'm not so great with emotions," Carrie tells the Wilkes-Barre Times Leader. "I consider myself more boyish in that way, so I'm pretty closed off. But when you're happy in your life, you can just tell."

She's certainly telling us now, especially with her recent engagement to Ottawa Senators star Mike Fisher. But she's also spelling things out in the lyrics of 'Mama's Song,' about a girl telling her mother she can trust the man who wants to marry her daughter. The Oklahoma darling co-wrote the tune with Luke Laird, Marti Frederiksen and 'American Idol' judge Kara DioGuardi.

In the meantime, the Grammy-nominated singer is climbing the country charts with her current single, 'Temporary Home.'