Oh, yeah definitely hear that both have that mid 80s HI-NRG thing happening.
I thought I'd check to see if there was any cross fertilisation going on but not obviously. Ross' track was produced by Daryl Hall and Arthur Baker, while Madonna co-produced hers with Stephen Bray.
I think the Ross track was released first. Interestingly (if you're me) 'Into The Groove' was never released as a single in the US - it was the B-side of Angel.