Red Hot Red Lips

<b>Red Hot</b> Ah, the red lip. It's been the staple of Hollywood fashion for decades and a symbol of sexiness worldwide. Some stars, like Gwen Stefani (middle) can pull off a red pout flawlessly. Others, like Scarlett Johansson (right) fare better with more neutral colors.  Check out which other stars can rock red lips and which should avoid the scarlet hue. For more pics of the hottest stars, go to <a href="http://www.x17online.com" target="_blank">x17online.com.</a>

<b>Jennifer Lopez</b> <b>Not Hot</b> J. Lo may look great in red gowns (seen here with her ex-husband Marc Anthony), but red lips just aren't for her.  (Reuters)

<b>Gwen Stefani</b> <b>Red Hot</b> The singer and L'Oreal Paris spokesperson is hardly ever seen without her signature red pout. For more pics of Gwen, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)

<b>Rihanna</b> <b>Not Hot</b> The singer would probably look okay with red lips if her hair didn't match. (Reuters)

<b>Salma Hayek</b> <b>Red Hot</b> Those who say you can't pull off red lips if you have olive skin tone should take a close hard look at Salma Hayek. She looks flawless.  For more pics of Salma, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a>   (X17online.com)

<b>Kourtney Kardashian</b> <b>Not Hot</b> The oldest Kardashian looks washed out with her black hair and bright red lips. For more pics of Kourtney, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)

<b>Christina Aguilera</b> <b>Not Hot</b> The songstress often goes for a red lip, but doesn't always get it right. The heavy makeup and platinum hair just isn't working for us.  For more pics of Christina, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a>   (X17online.com)

<b>Jessica Alba</b> <b>Red Hot</b> The stunning star pairs a blue gown with a red lip and looks flawless. For more pics of Jessica, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a>   (X17online.com)

<b>Cameron Diaz</b> <b>Not Hot</b> Some people just get washed out by the color red. Cameron is one of them. For more pics of Cameron, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a>  

<b>Ali Larter</b> <b>Red Hot</b> Ali Larter looks like a glamour goddess in this stunning red hue. For more pics of Ali, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)

<b>Leighton Meester</b> <b>Red Hot</b> The "Gossip Girl" star has some great makeup artists on the set of her hit show. For more pics of Leighton, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)

<b>Kim Kardashian</b> <b>Not Hot</b> We're seeing red from this bad makeup look. For more pics of Kim, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a>   (X17online.com)

<b>Lindsay Lohan</b> <b>Not Hot</b> Nothing about Lindsay Lohan's makeup look is right here.  For more pics of Lindsay, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)

<b>Scarlett Johansson</b> <b>Not Hot</b> Scarlett tends to look better with more natural looking makeup. For more pics of ScarJo, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)

<b>Miranda Kerr</b> <b>Red Hot</b> Lip rouge brings out the lingerie model's gorgeous features. For more pics of Miranda, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (/X17online.com)

<b>Jessica Biel </b> <b>Not Hot</b> The former "7th Heaven" star looks washed out in this hue. For more pics of Jessica, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)

<b>Hilary Duff</b> <b>Not Hot</b> The mom-to-be tends to avoid bright colors, and now we know why. For more pics of Hilary, go to <a target="_blank" href="http://www.x17online.com">x17online.com.</a> (X17online.com)