The math goes two times two for Nelly, as the hip-hop maven carves himself a record-setting feat in Billboard chart history.
But even with his pair of albums delivering 738,000 copies of new business, the music trade still faces an uphill climb.
The only act besides Nelly to open simultaneously at Nos. 1 and 2 on the Billboard 200 was Guns N' Roses, which saw its two "Use Your Illusion" albums do even bigger numbers when they arrived in September 1991.
Of the three songs that Nelly's new sets have fed to radio, the biggest hit thus far has been "My Place," which features Jaheim. It stands at No. 4 on the Billboard Hot 100 and Hot R&B/Hip-Hop Singles & Tracks and is the reason why "Suit" is the better-selling album, leading the pack with 396,000 copies, according to Nielsen SoundScan.