Complex sentence: In 2004, O'Riordan joined ex-Pogues guitarist Phil Chevron's re-united band The Radiators From Space; that year she also toured with the Pogues for the first time in 18 years.
Split into simpler sentences: In 2004, O'Riordan joined ex-Pogue Phil Chevron's re-united band The Radiators From Space. She also toured with the Pogues in 2004 for the first time in 18 years.