Hello by Lionel Ritchie ends its 6 (six!) weeks at the top. Relax is at its lowest point in the charts before it starts its rise up to no. 2 on 7 July. Madonna is having her second hit after Holiday got to no. 2 in January. Thriller was nearly 18 months old but PYT was the 5th hit from the album.
[Square indicates highest chart positon; circle indicates first chart hit for the act]