The 29-year-old singer and "Eric & Jesse: Game On" star attended the 2017 American Music Awards in Los Angeles following word she is pregnant and expecting another son with her husband, NFL star Eric Decker.
Decker, who hosted the red carpet live show, flaunted her growing belly in a form-fitting pink dress with an off-shoulder neckline and a thigh-high slit.
She completed her look with sky-high stiletto shoes.
"Had a blast hosting the red carpet tonight for @AMAs!!! #dickclarkproductions thanks for having me back," the star tweeted after the awards show.
Decker already shares 3-year-old daughter Vivianne and 2-year-old son Eric Decker II with Eric.
She announced in October that she's expecting another son, and followed up with a baby bump photo last week.
"Bump is out! Feeling kicks finally," the singer wrote at the time. "My placenta is in front so it's been really tough to feel this little man. Finally feeling him!!!"
Decker previously told fans she and Eric, a wide receiver for the Tennessee Titans, are "over the moon" to be expecting again.
The "Eric and Jesse: Game On" star is due to give birth in March.
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