After Stonewall finished their stint at Top Ten Club in Hamburg in 1969, Lawton decided to stay in Germany, after having been offered the job as singer with legendary German rock cult band Lucifer's Friend (1969–1976 and 1979–1995) with whom he recorded seven studio albums.

During his longstanding career Lawton has worked with some big names of rock, on various projects, including Roger Glover's "Butterfly Ball" live at the Royal Albert Hall in 1975, featuring David Coverdale, Glenn Hughes, Ian Gillan and Twiggy.

Lawton sang with German rock band Rebel, later known as Zar, on three albums, during the late '80s -'90s including their hit singles "Line of Fire" and "Eagles Flight", and moved on to Volker Barber's classical project "Excalibur".

In 1995 he briefly rejoined Uriah Heep for 2 weeks, to tour South Africa and Austria with Deep Purple, filling in for their singer Bernie Shaw, who was suffering from voice problems at the time.

Inspired by German top producer Robert Papst and his partner Reinhold Hoffman, Lawton re-recorded one of the Les Humphries Singers' favourites, the 1970s hit "Mama Loo", in January 1998.

In August 2000, his solo album Still Paying My Dues to the Blues, produced by Robert Papst, was released in Europe, UK and Scandinavia, by Hypertension Music Hamburg and distributed through EDEL Germany.

After an extensive tour of Europe during spring and summer of 2001 culminating with a concert on 12 May in Hamburg, Germany, featuring a full orchestra and a new rendition of Heep's old classic "Salisbury", both Ken and John returned to their respective solo careers.

In September 2008 John Lawton appeared on stage at the Heepvention 2008 in Spain, with former Uriah Heep members Ken Hensley, Lee Kerslake and Paul Newton, together with Jan Dumee from the OTR project on guitar.

Part of John's scenes were shot at Liscombe Park, UK, featuring a guest appearance by Uriah Heep guitarist Mick Box, with the remainder filmed in Sofia.