BIG (2007)

Single ''Shoo Be Doo'' is a winning bit of retro R&B — Macy Gray wraps her sultry wheeze around a comfortable groove that lets her explore her voice's fascinating cracks and warbles. And a few other tracks — the similarly soulful ''What I Gotta Do,'' the Justin Timberlake and will.i.am collaboration ''Okay'' — are reminders of why Gray once seemed like a big deal. Elsewhere, though, highlights are scarce. Much of BIG is either boring or forced, as when Gray launches into ''You Spin Me Round (Like a Record)'' for no discernible reason. B-