The R&B musician – who announced that the couple welcomed their second child together, Sire, in late September – took to Instagram in October to send a little birthday love to the leading lady in his life. "Happy Birthday, my love…couldn't ask for a better partner," he captioned a photo of the two, with Jenn sporting a belly cast at the time. With a slight reference to his 2004 hit with Lil Jon and Ludacris, Lovers and Friends, he added, "My Lover & Friend…I love U and celebrate U not only on our new arrival but to another year of growth for U and with U. Heart & Soul." In addition to little Sire, the two are also parents to their 12-month-old daughter, Sovereign. Earlier this year, Usher gushed when he made a sweet confession about the couple's enthusiasm about welcoming their second baby together. "We can't wait," he added of Sire's arrival. "I love being a girl dad." Looks like the days of Usher singing about needing a girl are definitely over.