Final answer:
Brent Rivera was born on January 9, 1998, and his birth sign is Capricorn, which is known for characteristics such as ambition, discipline, and practicality.
Step-by-step explanation:
Brent Rivera is a popular internet personality and actor known for his work on various social media platforms. Born on January 9, 1998, his birth sign, also known as a zodiac sign, is Capricorn. People born under the Capricorn sign, which is symbolized by the goat, are typically characterized by their ambitious, disciplined, and practical nature. They are often goal-oriented and work hard to achieve what they set out to do, which reflects in Brent Rivera's dedication to his career as a content creator and entertainer.