Heidi Montag and Spencer Pratt served up tacos to hungry drive-thru patrons in a Los Angeles Taco Bell. The twosome have teamed up with Taco Bell in an effort to raise awarness of global hunger.

It's nice to see them using their celebrity and staged photo ops to create awareness for a good cause, rather than to promote themselves.

Where's the love? The over the top affection? The unity? Perhaps it was a really long and tiring day because Heidi Montag and Spencer Pratt were not their normal selves while food shopping at Gelson's Market. There was no love for the flashing bulb. And Spencer even looked a bit annoyed. 

Buzzfoto thinks Spencer is angry because he isn't get paid for the shoot. I think that's pretty spot on and funny.

Heidi Montag and Spencer Pratt showed their true colors as they did some grocery shopping yesterday at Gelson’s Market in Pacific Palisades, California in these EXCLUSIVE shots. Heidi and her man did not share one smile nor a loving kiss, and were definitely not as lovey dovey as they would have us believe in their depicted shots.

Maybe the grocery shopping just puts them in a bad mood? As a matter of fact, Heidi and Spencer were actually quite shocked perhaps because they were caught in an impromptu photo shoot compared to their usually perfect color and makeup sessions. As they took note of the only photographer taking pictures, they actually looked away to take cover behind the checkout counter.

We do love that Spencer made all 98 pounds of Heidi push that big cart. Now for the best part of the story. Do you think Spencer Pratt looks **** because he is not getting a check for this photo shoot?

While promoting her new movie 'The Wackness' on Letterman, Mary-Kate Olsen spilled the beans on what it was like to go to high school with Spencer Pratt. I didn't even know these two went to school together. Says Mary-Kate,

"He does not have a good temper,"

"He used to play on the soccer team ... (and) he walked out of a few games. He would walk off the field."

Sounds like he hasn't changed a bit! When Letterman pressed for more dirt on Spencer, Mary-Kate reverted to promoting her movie and advised the rest of Hollywood to "Wear underwear! Wear your panties." Ha! I am really starting to like this girl.

Update: Spencer responds via Us Magazine

"I don't really get why she'd use my name to get press for her little indie film that no one's going to see, She should probably focus more on not getting dressed in the dark than on me."

"I know I've made it in Hollywood when a famous troll is talking about me on Letterman. I forgive her, though," he added. "She's had to go through life as the less cute twin, which must be tough."

I guess he never heard of taking the high road. 

 Photos by WENN