In honor of Selena Gomez's birthday, we showed you the official music video of her latest song "Slow Down." The singer debuted a more sultry and flirty look while sporting this year's big makeup trend—bold red lips. We just love how her rich red lipstick gives her fuller lips and tons of confidence throughout the party-themed vid. If you're a fan of this beauty look and want to know how to recreate it, click on the gallery below! For more lipstick tutorials, be sure to check out this week's #MakeupMonday.