Task: Question Answering
Input (English): Passage: Every night on the tour to support their 2000 album Return of Saturn, No Doubt threw after-show parties where people danced to Jamaican dancehall music. During a discussion over dinner in late 2000, the band members decided they wanted to explore dancehall-style rhythms for their next album. Drawing inspiration from artists such as Bounty Killer, Cutty Ranks, and Mr. Vegas, the band began work on the album in January 2001 by creating beats on Pro Tools at guitarist Tom Dumont's apartment. The group often tried recreating beats from other song files on the computer, which resulted in modified versions of the original rhythms. They worked with producer Philip Steir at Toast Studios in San Francisco during this time, where the beginnings of "Hey Baby" emerged. When writing lyrics for previous albums, Stefani typically read works by Sylvia Plath that would make her depressed "or find different words that inspire me." In contrast, for Rock Steady she wrote the lyrics quicker and on the spot to meet the goal of writing a song a day. Many of the demos recorded during these early sessions were used in the final tracks, rather than completely reworking the songs. The band saw this as a way to preserve the "initial spark" from when the songs were conceived.The next month, Stefani left Los Angeles for London to visit boyfriend Rossdale, and the band traveled with her to finish recording "Detective". There, they worked with Eurythmics member David A. Stewart and wrote the song "Underneath It All" in only 10 minutes. In March, No Doubt traveled to Jamaica, staying at the Blue Lagoon in Port Antonio. The band "spent most of the time swimming and getting sunburned and drinking and smoking and recording a little music", according to Dumont. The group would often have Red Stripe beers or rum and cokes with jerk food for breakfast; on one occasion, Dumont passed out from heavy drinking while recording a track. They began work in the mid-afternoon and worked into the night, with an after-party following the session. The group collaborated with Sly & Robbie, who produced "Underneath It All" and "Hey Baby" and brought in dancehall toasters Lady Saw and Bounty Killer, and Steely & Clevie, who produced "Start the Fire". 
Question: What is the name of the song that the band finished in London?
Output (English): Detective.