Just because Beyoncé is cooling her heels as she awaits the birth of her first child with husband Jay-Z, that doesn't mean her musical career is on bed rest.

In fact, Lady B has just unleashed the seventh and eighth music videos from her 4 album, for the songs "End of Time" and "I Was Here." Though they're not the high-concept clips Bey is typically known for, they are a nice sneak preview of the singer's upcoming "Live at Roseland" DVD, which will be on sale exclusively at Walmart starting November 21. The four-night stand of shows was taped at New York's Roseland Ballroom in August and featured a mix of old favorites and new songs from 4.

In the "I Was Here" video, we see a pre-pregnancy announcement Beyoncé onstage in a shimmery silver minidress, giving the crowd a bit of a windup about where the song came from. "It's taken a lot of hard work to get to where I am," she says in announcing the final tune of that show. "I searched all around the world, and I found myself. You all are my inspiration. I want to sing this last song and dedicate it to all of you guys."

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After a clip of a very young Beyoncé thanking the judges in a talent show, the singer stands center stage and belts out the lush, inspirational ballad over a montage of home videos from her childhood, through her rise with Destiny's Child and into solo superstardom. And, oh yeah, a blink-and-you-miss-it shot even includes a peek at the voluminous white wedding gown she wore at her very private wedding to Jigga, not to mention some silly footage of Queen B getting her Slip 'n Slide on.

The "End of Time" video is the opposite end of the spectrum, a red-laser-flashing uptempo dance marathon with Beyoncé and her four sexy backup dancers shaking it over the song's Brazilian drum beat. Fans get to see the many looks Bey tried on while performing the tune, including shots of her with her female dancers to others with a squad of male hoofers, as well as a wide range of costumes, from a yellow fringe number to a gold jacket and the silver number from the "I Was Here" clip.

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