Nick Lachey used to compete with Justin Timberlake when they were both in boy bands.
Nick was singing for 98 Degrees and Justin was a member of NSYNC.
But on Sunday evening Nick proved to be a fan of the hitmaker as he hit Timberlake's concert at The Forum in Inglewood.
Nick, 44, left a couple of buttons open over his chest and held hands with his wife when they were photographed stepping out in Inglewood.
Vanessa, née Minnillo, slid into a tartan button-down dress with a slit up the front, offering a full view of charcoal boots that complemented her black hat.